I. Burchaklar

I. Burchaklar

1. Soatning minut mili 9 minutda necha gradusga buriladi? (97–5–3)
A) 15⁰ B) 30⁰ C) 25⁰ D) 54⁰ E) 60⁰
2. Soatning minut mili 6 minutda necha gradusga buriladi? (97–9–3)
A) 20⁰ B) 24⁰ C) 36⁰ D) 40⁰ E) 60⁰
3. Ikkita to`g`ri chiziqning kesishsishdan hosil bo`lgan uchta burchakning yig`indisi 315⁰ ga teng. Shu burchaklarning kichigini toping. (96–1–37)
A) 60⁰ B) 45⁰ C) 70⁰ D) 85⁰ E) 50⁰
4. AB va CD to`g`ri chiziqlar O nuqtada kesishadi. AOD va COB burchaklarning yig`indisi 230⁰ ga teng. AOC burchakni toping. (99–3–44)
A) 70⁰ B) 120⁰ C) 65⁰ D) 95⁰ E) 85⁰
5. Ikkita to`g`ri chiziqning kesishidan hosil bo`lgan uchta burchak yig`indisi 265⁰. Shu burchaklardan kattasini toping. (96–9–88)
A) 110⁰ B) 95⁰ C) 105⁰ D) 150⁰ E) 120⁰
6. Ikkita to`g`ri chiziqning kesishidan hosil bo`lgan qo`shni burchaklarning ayirmasi 40⁰ ga teng. Shu burchaklarning kichigini toping. (96–10–39)
A) 60⁰ B) 40⁰ C) 50⁰ D) 70⁰ E) 45⁰
7. Ikkita to`g`ri chiziqning kesishishidan hosil bo`lgan qo`shni burchaklarning gradus o`lchovlari 2:3 nisbatda bo`lsa, shu burchaklarni toping.
(96–3–37)
A) 72⁰;108⁰ B) 60⁰;120⁰ C) 30⁰;150⁰
D) 50⁰;130⁰ E) 62⁰;118⁰
8. Ikkita to`g`ri chiziqning kesishishidan hosil bo`lgan burchaklarning kattaliklari nisbati 7:3 ga teng. Shu burchaklarning kichigini toping.
(97–6–27)
A) 63⁰ B) 51⁰ C) 57⁰ D) 48⁰ E) 54⁰
9. Ikkita to`g`ri chiziqning kesishishidan hosil bo`lgan qo`shni burchaklarining gradus o`lchovlari 3:7 nisbatda bo`lsa, shu burchaklarni toping.
(96–12–39)
A) 60⁰;120⁰ B) 30⁰;150⁰ C) 54⁰;126⁰
D) 62⁰;118⁰ E) 40⁰;140⁰
10. Ikkita to`g`ri chiziqning kesishishidan hosil bo`lgan qo`shni burchaklar 5:7 nisbatda bo`lsa, shu burchaklarni toping. (96–11–38)
A) 36⁰;144⁰ B) 75⁰;105⁰ C) 42⁰;138⁰
D) 38⁰;142⁰ E) 85⁰;95⁰
11. Ikkita to`g`ri chiziqning kesishishidan hosil bo`lgan burchaklarni biri 30⁰ ga teng. Qolgan burchaklarni toping. (98–11–80)
A)150⁰;150⁰;30⁰ B)110⁰;110⁰;110⁰ C)60⁰;60⁰;30⁰
D) 120⁰;120⁰;90⁰ E) 130⁰;130⁰;70⁰
12. Ikkita parallel to`g`ri chiziqni uchinchi to`g`ri chiziq kesib o`tganda hosil bo`lgan ichki bir tomonli burchaklardan biri ikkinchisidan 60⁰ kichik. Shu burchaklardan kattasini toping.
(98–1–39)
A) 120⁰ B) 110⁰ C) 118⁰ D) 130⁰ E) 100⁰
13. Ikkita parallel to`g`ri chiziqni uchinchi to`g`ri chiziq kesib o`tganda hosil bo`lgan ichki bir tomonli burchaklardan biri ikkinchisidan 17 marta kichik. Shu burchaklardan kichigini toping.
(98–8–39)
A) 20⁰ B) 24⁰ C) 15⁰ D) 10⁰ E) 18⁰
14. Qo`shni burchaklardan biri ikkinchisidan 16<sup>0</sup> katta. Shu qo`shni burchaklarni toping. (96–3–36)
A) 16⁰;164⁰ B) 80⁰;96⁰ C) 148⁰;32⁰
D) 82⁰;98⁰ E) 62⁰;118⁰
15. Qo`shni burchaklardan biri ikkinchisidan 32<sup>0</sup> ga katta. Shu qo`shni burchaklardan kattasini toping. (97–11–27)
A) 106⁰ B) 118⁰ C) 116⁰ D) 114⁰ E) 108⁰
16. Qo`shni burchaklardan biri ikkinchisidan 18<sup>0</sup> ga katta. Shu qo`shni burchaklarni toping.
(96–12–38)
A) 82⁰;98⁰ B) 81⁰;99⁰ C) 80⁰;100⁰
D) 162⁰;18⁰ E) 98⁰;82⁰
17. Qo`shni burchaklardan biri ikkinchisidan 20<sup>0</sup> katta. Shu qo`shni burchaklarni toping. (96–11–37)
A) 160⁰;20⁰ B) 28⁰;152⁰ C) 20⁰;160⁰
D) 140⁰;40⁰ E) 80⁰;100⁰
18. Ikki qo`shni burchakning ayirmasi 24⁰ ga teng. Shu burchaklardan kichigini toping. (97–1–27)
A) 72⁰ B) 68⁰ C) 82⁰ D) 76⁰ E) 78⁰
19. Qo`shni burchaklardan biri ikkinchisidan 4 marta kichik bo`lsa, shu burchaklardan kattasini toping. (97–4–43)
A) 125⁰ B) 130⁰ C) 140⁰ D) 144⁰ E) 120⁰
20. O`ziga qo`shni burchakning 44% iga teng bo`lgan burchakning kattaligini aniqlang. (99–8–12)
A) 55⁰ B) 80⁰ C) 60⁰ D) 52⁰ E) 78⁰
21. O`ziga qo`shni burchakning qismiga teng burchakning toping. (99–4–36)
A) 54⁰ B) 66⁰ C) 72⁰ D) 42⁰ E) 63⁰
22. α va β qo`shni burchaklar. Agar α:β=2:7 bo`lsa,
β va α burchaklar ayirmasini toping. (00–5–51)
A) 70⁰ B) 60⁰ C) 100⁰ D) 90⁰ E) 80⁰
23. Qo`shni burchaklar bissektrissalari orasidagi burchakni toping. (98–6–33)
A) 90⁰ B) 80⁰ C) 100⁰ D) 70⁰ E) 60⁰
24. a||b. x–? (96–3–91)

A) 30⁰ B) 60⁰ C) 45⁰ D) 40⁰ E) 50⁰
25. a||b. x–? (96–9–26)

A) 45⁰ B) 40⁰ C) 35⁰ D) 30⁰ E) 36⁰
26. a||b, α–? (96–12–92)

A) 120⁰ B) 110⁰ C) 140⁰ D) 160⁰ E) 150⁰
27. a||b. α–? (96–13–32)

A) 60⁰ B) 45⁰ C) 30⁰ D) 50⁰ E) 35⁰
28. a||b. x=? (98–3–34)

A) 130⁰ B) 135⁰ C) 140⁰ D) 125⁰ E) 120⁰
29. Bir nuqtada uchta to`g`ri chiziq o`tkazilgan α+β+γ ni toping. (98–6–32)

A) 270^0 B) 180^0 C) 135^0 D) 100^0 E) 90^0

30. a||b. x=? (98–10–81)

A) 50⁰ B) 60⁰ C) 45⁰ D) 55⁰ E) 65⁰
31. Berilgan burchak va unga qo`shni bo`lgan ikkita burchaklar yig`indisi π ga teng. Berilgan burchakning kattaligni toping. (00–3–72)

II. Trigonometriya-1

1. radian necha gradusga teng?
A) 230⁰ B) 220⁰ C) 250⁰ D) 240⁰ E)210⁰
2. radian necha gradus bo`ladi?
A) 220⁰ B) 230⁰ C) 225⁰ D) 240⁰ E)235⁰
3. 72⁰ ni radian o`lchovini toping.
A) 72 B) 1 C) 0,3 D) E)
4. 240⁰ ni radian o`lchovini toping.

5. 216⁰ ni radian o`lchovini toping.

6. Agar sinα•cosα>0 bo`lsa, α burchak qaysi chorakka tegishli?
A) I yoki II B) I yoki III C) I yoki IV
D) II yoki III E) III yoki IV
7. Agar tgα•cosα>0 bo`lsa, α burchak qaysi chorakka tegishli?
A) II yoki III B) III yoki IV C) I yoki II
D) I yoki III E) I yoki IV
8. Agar sinα•cosα<0 bo`lsa, α burchak qaysi chorakka tegishli?
A) I yoki II B) I yoki III C) I yoki IV
D) II yoki IV E) III yoki IV
9. a=sin540⁰, b=cos640⁰, c=tg540⁰ va d=ctg405⁰ sonlardan qaysi biri manfiy?
A)a B)b C)c D)d E)hech qaysi manfiy emas
10. Quyidagi sonlardan qaysi biri manfiy?
A) tg247⁰•sin125⁰ B) ctg215⁰•cos300⁰
C) tg135⁰•ctg340⁰ D) sin247⁰•cos276⁰
E) sin260⁰•cos155⁰

11. Quyidagi sonlardan qaysi biri musbat?

12. Quyidagi sonlardan qaysi biri manfiy?
A) sin125⁰•cos322⁰ B) cos148⁰•cos289⁰
C) tg196⁰•ctg189⁰ D) tg220⁰•sin100⁰
E) ctg320⁰•cos186⁰
13. Quyidagi sonlardan qaysi biri manfiy?


14. va sonli ifodalarning qaysi biri musbat?
A) M B) N C) P D) Q E) hech qaysisi
15. Quyidagilardan qaysi biri musbat?
A) cos3 B) sin4 C) sin2 D) tg2 E) cos9
16. 5sin90⁰+2cos0⁰–2sin270⁰+10cos180⁰ ni hisoblang.
A) –3 B) –6 C) –1 D) 9 E) 19
17. 3tg0⁰+2cos90⁰+3sin270⁰–3cos180⁰ ni hisoblang.
A) 6 B) 0 C) –6 D) 9 E) –9
18. sin180⁰+sin270⁰–ctg90⁰+tg180⁰–cos90⁰ ni qiymatini hisoblang.
A) –1 B) 0 C) 1 D) –2 E) 2
19. sin1050⁰–cos(–90⁰)+ctg660⁰ ni hisoblang.

20. sin(–45⁰)+cos405⁰+tg(–945⁰) ni hisoblang.

21. cos(–45⁰)+sin135⁰+tg(–855⁰) ni hisoblang.

22. ni hisoblang.

23. 2tg(–765⁰) ning qiymatini aniqlang.

24. sin2010⁰ ni hisoblang.

25. lgtg22⁰+lgtg68⁰+lgsin90⁰ ni hisoblang.
A) 0,5 B) 1 C) 0 D) 0,6 E) –1
26. ni hisoblang.
A) 1 B) 2 C) 3 D) 4 E) 5
27. ni soddalashtiring.
A)cosα B)2sinα C)–cosα D)tgα E)–sinα
28. ni soddalashtiring.
A) cosαctgβ B) –cosαctgβ C) –cosαtgβ
D) sinαtgβ E) –sinαctgβ
29. ni soddalashtiring.
A) –sinαtgβ B) cosαtgβ C) sinαtgβ
D) –cosαtgβ E) sinαctgβ
30. ni soddalashtiring.

31. ni soddalashtiring.

32. ni soddalashtiring.
A)cosα B)sinα C)–2sinα D)–cosα E) 3cosα
33. ni soddalashtiring.
A)–tgα B)2sinα C)ctgα D)tgα E)–cosα
34. ni soddalashtiring.
A)tgα B)–tgα C)–2ctgα D)–2cosα E)sinα
35. tgα•ctg(π+α)+ctg²α ni soddalashtiring.
A) B) C)tgα D)tg²α E)1
36. ifodani soddalashtiring.
A) π B) cosx C) sin²x D) 2 E) 1
37. ni soddalashtiring.
A) tg²α B) ctg²α C)–tg²α D) E)
38. ni soddalashtiring.
A) –sin²α B) –cos²α C) –sin²αtg²α
D) cos²αctg²α E) sin²αtg²α
39. ni soddalashtiring. (99–6–23)
A)–tg²α B)tg²α C)ctg²α D)–ctg²α E)sin²α
40. sin²α+cos²α+ctg²α ni soddalashtiring.

41. ni soddalashtiring.

42. ni soddalashtiring. (99–9–32)


43. ni soddalashtiring.
(97–11–46)
A) tg⁴α B) tg²α C) ctg⁴α D) tg²α E)2ctg²α
44. ni soddalashtiring. (98–1–55)
A) 2sinα B) 2 C) ctg²α D) 1 E) 3
45. ni soddalashtiring. (98–8–55)
A) 3 B) 2 C) D) E) 1
46. ni soddalashtiring. (96–3–112)
A) 2cosα B) 2 C) 2sinα D) 1 E) 0,5
47. ni soddalashtiring.(96–9–47)
A)cosα B)sinα C)–cosα D)–2sinα E)cosα–2sinα
48. ifodani soddalashtiring. (96–1–57)
A) ctg(β–α) B) tg(α–β) C) 2tg(α+β)
D) 2ctg(α–β) E) sinαcosβ
49. ni soddalashtiring.
(98–1–58)
A) 2tgα B) 2sinα C) 4tgα D) ctgα E) tgα
50. ni soddalashtiring.
(98–8–58)
A) 2ctgα B) tgα C) 2sinα D) ctgα E) –ctgα
51. ni soddalashtiring.
(99–8–76)
A) 2tg2α B) tg2α•tgα C) 2sin2α
D) 4cos²α E) 4sin²α
52. ni soddalashtiring. (00–7–29)
A)3ctg²α B)3tg²α C)1,5ctg²α D)1,5tg²α E)ctg²α
53. ni soddalashtiring. (00–1–27)
A)cos^–2α B)sin^–2α C)sin²α D)cos²α E)–cos²α
54. (cos3x+cosx)²+(sin3x+sinx)² ni soddalashtiring. (00–2–48)
A) 4cos²x B) 2cos²x C) 3sin²x
D) 4sin²x E) 4cos²x+1
55. sin²α+sin²β–sin²α•sin²β+ cos²α•cos²β ni soddalashtiring. (96–6–21)
A) 1 B) 0 C) –1 D) –2 E) 2
56. sin²x+cos²x+tg²x ni soddalashtiring. (99–9–80)

57. ni soddalashtiring. (97–6–46)
A)2tg²α B) C) 2 D)sin²α E)ctg²α
58. ni soddalashtiring. (99–2–27)

59. ni soddalashtiring. (96–6–35)
A) –2cos2α B) 2cos2α C) sin2α
D) –2sin2α E) 2sin2α
60. quyidagilardan qaysi biriga teng? (97–2–35)

61. quyidagilardan qaysi biriga teng? (97–8–34)

62. ni soddalashtiring. (97–1–47)
A)cos²α B)tgα C) D)ctg²α E)sin²α
63. quyidagilardan qaysi biriga teng? (97–12–34)
A)2sinα B)2cosα C)–2cosα D)–sinα E)–2sinα
64. ni soddalashtiring. (98–10–35)
A)sin2α B)2sinα C)–2cosα D)–2sinα E)2cosα
65. ni soddalashtiring. (99–6–25)
A) tg2α–1 B) tgα–1 C) tgα+1
D) 1–tg2α E) ctg2α–1
66. ni soddalashtiring.
(99–3–32)
A) 1 B) –1 C) sin²α D) cos²α
E) To`g`ri javob berilmagan
67. ni soddalashtiring. (99–10–31)
A) –sin2α B) cos2α C) sin2α
D) sin2α E) – cos2α
68. ni soddalashtiring. (96–12–85)
A)cos2α B) C) D)2 E)sin2α
69. ctg2α–ctgα ni soddalashtiring. (00–1–31)

70. ni soddalashtiring. (96–13–38)
A)ctg2α B)sin2α C)tg2α D)cos2α E)
71. ni soddalashtiring. (00–6–53)


72. sin⁶α+cos⁶α+3sin²α•cos²α ni soddalashtiring.
(99–6–51)
A) –1 B) 0 C) 1 D) 2 E) 4
73. Noto`g`ri tenglikni ko`rsating. (99–6–31)
A) cos(–x)= –cosx B) cos(π+x)= –cosx
C) D) tg(2π–x)= –tgx
E) tg(π+x)=tgx
74. Quyidagi tengliklardan qaysi biri no`to`g`ri?
(99–1–42)

75. Quyidagi ifodalardan qaysi birining qiymati 1 ga teng emas? (98–9–22)
1)2cos²α–2cos2α; 2)2sin²α+cos2α 3)tg(90⁰+α)tgα;
4) (3 va 4 ifodalar α ning qabul qilishi mumkin bo`lgan qiymatlarida qaraladi)
A)1 B)2 C)3 D)4 E)bunday son yo`q
76. q=tgxtg(270⁰–x) r = cos²(270⁰–x)+cos²x va l=sin42⁰cos48⁰+sin48⁰cos42⁰ sonlardan qaysi biri qolgan uchtasiga teng emas? (98–2–25)
A) p B) q C) r D) l E)hech qaysisi
77. ni hisoblang. (96–7–55)


78. ni hisoblang. (97–3–55)


79. ni hisoblang. (97–10–55)


80. ni hisoblang. (97–7–55)


81. sin112,5⁰ ni hisoblang. (00–3–50)


82. sin202⁰30' ni hisoblang. (99–8–69)


83. cos45⁰cos15⁰+sin45⁰sin15⁰ ni hisoblang.
(98–6–54)

84. cos92⁰•cos2⁰+0,5•sin4⁰+1 ni hisoblang.(98–4–29)

85. ni soddalashtiring. (96–7–54)
A) 1 B) cos10⁰ C) sin46⁰ D) –sin10⁰ E) 2
86. ni soddalashtiring. (97–3–54)
A) B) tg28⁰ C) 2 D) E) –2
87. ni soddalashtiring. (97–7–54)
A) B) tg28⁰ C) D) E) 1
88. ni soddalashtiring. (96–10–54)
A)2cos10⁰ B) sin10⁰ C)2 D) E)cos46⁰
89. (98–3–53)
A)2 B)3 C) D) E)
90. ning qiymatini hisoblang.
(99–10–29)
A) 4 B) 6 C) 3 D) 5 E) 2
91. hisoblang. (98–12–90)
A) 2 B) –4 C) –3 D) –1 E) –2
92. ni hisoblang.
(97–1–52)

93. ni hisoblang. (98–1–57)

94. ni hisoblang.
(97–6–51)
A) 0 B) 1 C) 2 D) E)
95. ni hisoblang. (98–8–57)

96. ni hisoblang. (99–6–15)
A) 14 B) 7 C) -14 D) –14 E)7
97. ni hisoblang. (99–6–42)

98. 8cos30⁰+tg²15⁰ ni hisoblang. (97–5–28)
A) 5 B) 6 C) 7 D) 8 E) 9
99. 4ctg30⁰+tg²15⁰ ni hisoblang. (97–9–28)
A) 5 B) 7 C) 9 D) 8 E) 6
100. tg15⁰–ctg15⁰ ni hisoblang. (98–10–32)

101. tg22,5⁰+tg^–122,5⁰ ni hisoblang. (98–11–17)
A) B)( )^–1 C)4 D)4^–1• E)2
102. ni hisoblang. (00–6–52)

103. sin75⁰–sin15⁰ ni hisoblang. (98–11–103)

104. sin105⁰+sin75⁰ = ? (98–10–100)


105. sin10⁰+sin50⁰–cos20⁰ ni hisoblang. (00–8–59)
A) 0 B) –1 C) 1 D) cos20⁰ E) sin20⁰
106. ni hisoblang. (00–1–28)
A)0,25 B)0,75 C)0,5 D)0,6 E)0,3
107. cos24⁰–cos84⁰–cos12⁰+sin42⁰ ni hisoblang.
(00–10–52)

108. ni hisoblang.
(00–8–48)

109. ni hisoblang. (00–9–58)
A) 1 B) 2 C) D) E) 3
110. ni hisoblang. (99–5–54)
A) 1 B) 2 C) 3 D) 4 E) 2,5
111. tg1⁰•tg2⁰•...•tg88⁰•tg89⁰ ni hisoblang. (98–5–49)
A)0 B) C)1 D)hisoblab bo`lmaydi E)
112. (98–3–54)
A) 4 B) 2 C) 1,5 D) 3 E) 2,5
113. cos50⁰cos40⁰–2cos20⁰sin50⁰sin20⁰ ni hisoblang. (00–8–46)
A) 0 B) 1 C) –1 D) cos20⁰ E) sin40⁰
114. ni hisoblang. (00–10–13)

115. cos5⁰•cos55⁰•cos65⁰ ni hisoblang. (00–10–79)

116. ni hisoblang. (99–6–53)


117. ni hisoblang. (99–4–58)

118. sin10⁰•sin30⁰•sin50⁰•sin70⁰ ni hisoblang.
(96–11–59)

119. sin20⁰•sin40⁰•sin80⁰ ni hisoblang. (96–3–57)

120. cos20⁰•cos40⁰•cos80⁰ ni hisoblang. (96–12–12)

121. sin150⁰ ning qiymati cos20⁰•cos40⁰•cos80⁰ ning qiymatidan qanchaga katta? (99–9–29)

122. ni hisoblang.
(00–5–30)

123. ni hisoblang. (97–4–36)
A) 0 B) 2 C) 3 D) 1 E) 1,5
124. log₂cos20⁰+log₂cos40⁰+ log₂cos60⁰+log₂cos80⁰ ni hisoblang. (00–8–41)
A) –4 B) –3 C) D) 1 E) 0
125. log₅tg36⁰+log₅tg54⁰ ni hisoblang. (00–8–42)
A) 0 B) 1 C) D) E) Ø
126. Quyidagilardan qaysi birining qiymati manfiy? (98–9–21)
A) sin140⁰–sin150⁰ B) cos10⁰–cos50⁰
C)tg87⁰–tg85⁰ D)ctg45⁰–ctg40⁰ E)cos75⁰–sin10⁰
127. funksiyaning eng kichik davrini toping. (96–9–48)
A) 4π B) 6π C) 3π D) 12π E) 15π
128. funksiyaning eng kichik davrini toping. (96–12–109)
A) 6π B) 3π C) 4π D) 9π E) 2π
129. funksiyaning eng kichik davrini toping. (96–13–14)
A) 6π B) 2π C) 3π D) 12π E) 5π
130. y=cos(8x+1), y=sin(4x+3), y=tg8x va y=tg(2x+4) funksiyalar uchun eng kichik umumiy davrini toping. (97–4–38)
A) 2π B) π C) D) E)
131. y=sin(3x+1)funksiyaning davrini toping.
(98–10–102)
A) B) π C) D) 2π
E) To`g`ri javob ko`rsatilmagan
132. funksiyaning eng kichik musbat davrini aniqlang. (96–12–56)
A) B) 2π C) π D) E)
133. funksiyaning eng kichik musbat davrini aniqlang. (99–3–31)
A) 12 B) 12π C) 2π D) 24π E) 24
134. y=13sin²3x funksiyaning eng kichik musbat davrini aniqlang. (98–5–54)

135. y=tg(3x+1), y=ctg6x, y=cos(3x+1) va y=sin(6x+4) funksiyalar uchun eng kichik musbat davrini toping. (97–9–98)
A) B) C) D) π E) 2π
136. funksiyasi eng kichik musbat davrining y=cos8x funksiya eng kichik musbat davriga nisbatini toping. (99–2–26)
A) 12 B) 14 C) 10 D) 18 E) 16
137. y=sin|x| funksiyaning eng kichik davrini ko`rsating. (00–5–43)
A)2π B) π C)davriy emas D) E) 3π
138. Quyidagi funksiyalardan qaysi birining eng kichik davri 2π ga teng? (96–6–42)
A) B) C)y=1–cos²x
D) y=sin²x–cos²x E) y=ctg2x•sin2x
139. Quyidagi funksiyalardan qaysi birining eng kichik davri ga teng? (97–2–42)
A)y=cosx•sinx B)y=1+cos2x C)
D) E) y=tgx•cosx
140. Quyidagi funksiyalardan qaysi birining eng kichik davri π ga teng? (97–8–43)
A) B)
C) f(x)=ctgx•sinx D) f(x)= –sin²x–cos²x
E) f(x)=x–cos⁴x
141. Quyidagi funksiyalardan qaysi birining eng kichik davri 2π ga teng? (97–12–41)
A) f(x)=cos²x–sin²x B)
C) D) f(x)=cos²x+3sin²x
E) f(x)=tg2x–cos2x
142. Agar bo`lsa, cos²α ni hisoblang.
(96–1–55)

143. Agar bo`lsa, ni hisoblang. (96–10–35)
A) 0,5 B) 1,5 C) 3 D) E) –0,5
144. bo`lsa, tgα ni qiymatini toping. (96–3–111)
A) 3 B) –3 C) D) – E)
145. Agar bo`lsa, ni hisoblang. (98–1–54)
A) –4 B) 4 C) D) – E) 2
146. . tg2α–? (98–10–101)

147. Agar tgα=3 bo`lsa, ning qiymati qanchaga teng bo`ladi? (98–4–17)

148. Agar bo`lsa, ni hisoblang. (98–8–54)
A) B) 8 C) D) 4 E) 2
149. Agar tgα=2 bo`lsa, ning qiymatini hisoblang. (00–4–45)

150. Agar bo`lsa, kasning qiymatini toping. (00–2–45)
A) 6 B) 5 C) 6,2 D) 4,8 E) 6,4
151. . (00–10–16)
A) –3 B) 3 C) –9 D) 9 E)
152. Agar bo`lsa, ni hisoblang. (00–10–64)
A) 5 B) 4,5 C) 81 D) 4 E) 14,4
153. . tgx=? (99–6–33)
A) 7 B) –3 C) 3 D) –7 E) 2
154. Agar bo`lsa, ning qiymati qanchaga teng bo`ladi? (98–11–101)
A) 7 B) 8 C) 9 D) 11 E) 6
155. Agar tgα+ctgα=4 bo`lsa, sin2α ni hisoblang.
(99–9–31)

156. bo`lsa, ctgα ning qiymatini toping. (96–9–46)
A) 3 B) C) – D) –4 E) –3
157. bo`lsa, tgα ning qiymatini toping. (96–12–84)

158. bo`lsa, ctgα ning qiymatini toping. (96–13–53)

159. va α+β=45⁰ x=?
(97–1–66)
A) 41 B) 40 C) 5 D) 42 E)t.j.y
160. Agar tg(x+y)=3 va tg(x–y)=2 bo`lsa, tg2x ni hisoblang. (97–1–60)
A) 5 B) 2,5 C) 1 D) –1 E) –5
161. tg(α+β)=5, tg(α–β )=3 bo`lsa, tg2β ni hisoblang. (97–6–60)
A) 15 B) 8 C) D) 1 E) 2
162. Agar tg(x+y)=5 va tgx=3 bo`lsa, tgy ni toping. (98–6–48)
A) 2 B) C) 8 D) E) –
163. Agar 5x²–3x–1=0 tenglamaning ildizlari tgα va tgβ bo`lsa, tg(α+β) qanchaga teng bo`ladi?
(98–11–73)
A) B) 1 C) 3 D) E) 5
164. Agar va bo`lsa, ni toping. (97–6–44)

165. Agar va bo`lsa, tgα ni toping. (98–5–48)

166. Agar va π<α<1,5π bo`lsa, ni toping. (97–11–44)

167. Agar va bo`lsa, ni hisoblang. (99–1–8)
A) B) 1 C) 3 D) –1 E) –3
168. , bo`lsa, ni hisoblang. (98–11–20)
A)3 B) 5 C) 6 D) 4 E) 2
169. Agar va bo`lsa, ctgα ni hisoblang. (99–7–47)
A)–4 B) C) D) E)
170. Agar va , bo`lsa, ni hisoblang. (99–3–39)
A) 0,6 B) C) D) –0,6 E) 0,96
171. Agar va bo`lsa, ni toping. (97–1–45)

172. Agar va tgα=2 bo`lsa, cosα ni hisoblang. (00–8–61)

173. Agar α= –45⁰ va β=15⁰ bo`lsa, cos(α+β)+2sinαsinβ ning qiymatini toping.
(00–1–29)

174. Agar va bo`lsa, sin2α ning qiymati qanchaga teng bo`ladi?
(98–12–78)

175. Agar va , bo`lsa, sin(α–β) ning qiymati qanchaga teng bo`ladi? (98–11–104)

176. Agar tg(α–β)=5 va α=45⁰ bo`lsa, tgβ ning qiymatini hisoblang. (99–10–30)

177. Agar bo`lsa, cos(x–y) ni toping. (98–6–56)

178. va miqdorlar tenglikni qanoatlantiradi. ning qiymatini hisoblang. (00–9–46)

179. va
bo`lsa, ning qiymatini hisoblang. (99–5–42)
A) B) 1 C) 2 D) 3 E)
180. va (tgα+ )(tgβ+ )=4 bo`lsa, ning qiymatini hisoblang. (00–9–65)
A) 0,25 B) 0,5 C) 0,36 D) 0,65 E) 0,16
181. Agar va (tgα+1)(tgβ+1)=2 bo`lsa, ning qiymati nimaga teng.
(99–5–25)
A) 0,5 B) 0,2 C) 0,3 D) 0,4 E) 0,6
182. Agar α=15⁰ bo`lsa, (1+cos2α)tgα ning qiymatini bilan solishtiring. (98–10–37)
A) u dan kichik B) u ga teng
C) u dan 2 marta katta
D) u dan 4 marta katta
E) u dan ga katta
183. Agar α=46⁰ va β=16⁰ bo`lsa, sin(α+β)–2sinβcosα 21,5 dan qancha kam bo`ladi? (98–10–33)
A) 22 B) 20 C) 20,5 D) 19,5 E) 21
184. Agar sinα+cosα=a bo`lsa, |sinα–cosα| ni a orqali ifodalang.(98–12–54)
A) B) – C)
D) E) 2 – a²
185. Agar tgα+ctgα=p bo`lsa, tg²α+ctg²α ni p orqali ifodalang.(98–12–55)
A) p²–2 B) –p²+2 C) p²+2 D) p²–1 E) p²+1
186. Agar tgα+ctgα=a (a>0) bo`lsa, qiymati qanchaga teng bo`ladi?
(98–11–97)
A) B) a–2 C)
D) a + 2 E)
187. Agar tgα+ctgα=p bo`lsa, tg³α+ctg³α ni p orqali ifodalang.(98–8–62)
A)–p³–3p B)p³–3p C)p³+3p D)3p–p³ E)3p³ –p
188. Agar b=sin(40⁰+α)va 0<α<45⁰ bo`lsa, cos(70⁰+α) ni b orqali ifodalang. (98–8–61)
A) B)
C) D)
E)
189. Agar bo`lsa, ni toping. (98–6–52)
A) 1,5k B) 2k C) D) –k E) –