I. Burchaklar

XI. Trigonometriya 2.

1. ni hisoblang. (98–2–22)
A) -75⁰ B) 75⁰ C) -105⁰ D) 165⁰ E) 105⁰
2. ni hisoblang.
(98–2–22)

3. ni hisoblang.
(98–9–20)

4. ni hisoblang.
(98–8–68)

5. ni hisoblang. (99–3–39)

6. ni hisoblang. (96–7–60)

7. ni hisoblang. (97–4–63)

8. sin(2arctg3) ning qiymatini toping. (00–4–46)
A) 0,6 B) 0,8 C) 0,75 D) 0,36 E) 0,9
9. sin(2arctg0,75) ni hisoblang. (00–10–37)

10. ni hisoblang. (97–12–66)

11. ni qiymatini toping. (00–6–54)

12. ni hisoblang. (97–7–60)

13. ni hisoblang. (00–3–56)

14. ni hisoblang. (98–12–76)

15. ni hisoblang. (00–7–27)
A) 0,8 B) 0,4 C) 0,7 D) 0,5 E) 0,6
16. ni hisoblang.
(98–5–47)

17. ni hisoblang. (99–3–36)

18. ni hisoblang. (99–7–46)

19. ni hisoblang. (00–5–44)

20. ni hisoblang. (98–11–42)

21. ni hisoblang. (98–4–16)

22. arcsin(sin10) ni hisoblang. (97–5–30)
A) π – 10 B) 2π – 10 C) 3π – 10
D) E)
23. (98–3–57)

24. arcctg(ctg(–3)) ni hisoblang. (97–9–30)

25. arcctg(tg(–37⁰)) necha gradus? (00–3–54)
A) -37⁰ B) 37⁰ C) 127⁰ D) 143⁰ E) 53⁰
26.
(98–10–104)

27. Agar bo`lsa, ni hisoblang. (97–9–96)
A) 1 B) 2 C) 0 D) 3 E) 5
28. funksiyaning aniqlanish sohasini toping. (97–6–47)

29. funksiyaning aniqlanish sohasini toping. (97–11–47)

30. funksiyaning aniqlanish sohasini toping. (97–1–48)

31. y=tg3x+ctg2x funksiya x ning qanday qiymatlarida aniqlanmagan? (98–3–55)

32. funksiyaning aniqlanish sohasini toping. (00–3–58)
A) (-∞; 4) B) [1; 4) C) [1; 4]
D) (-∞;-1)U(-∞;4) E) [-1;5]
33. funksiyaning aniqlanish sohasiga tegishli butun sonlar nechta? (00–9–61)
A) 1 B) 2 C) 3 D) 4 E) 5
34. [-10;10] oraliqdagi nechta butun son funksiyaning aniqlanish sohasiga tegishli? (99–5–57)
A) 10 B) 11 C) 12 D) 13 E) 14
35. funksiyaning aniqlanish sohasiga tegishli nuqlatalardan nechtasi [-10π;10π] kesmaga tegishli ? (98–4–35)
A) cheksiz ko`p B) 10 C) 21 D) 5 E) 11
36. funksiyaning qiymatlar sohasini toping. (00–5–71)
A) [-2;0] B) (-2;-1)U(-1;0) C) (-2;0)
D) [-2;-1)U(-1;0) E) [0;2]
37. funksiyaning qiymatlar sohasini toping. (98–10–31)
A) (-1;1) B) [-1;1] C) [-2;0)U(0;2]
D) [-2;2] E) (-2;2)
38. y=6sin2x+8cos2x funksiyaning qiymatlar to`plamini toping. (00–3–57)
A)[-10;10] B)[-14;14] C)(-∞;∞) D)[0;6] E)[0;8]
39. y=2sinx+cosx funksiyaning eng katta qiymatini toping. (96–10–15)
A) 3 B) C) 2 D) -1 E) 5
40. y=2sin3x+cos3x funksiyaning eng katta qiymatini toping. (96–1–56)
A) 3 B) 2 C) D) 4 E) 1,5
41. f(x)=5sinx+6 funksiyaning eng katta qiymatini toping. (98–5–14)
A) -1 B) 11 C) 1 D) 6 E) 7
42. f(x)=6cosx-7 funksiyaning eng katta qiymatini toping. (99–7–16)
A) -1 B) -7 C) 1 D) 0 E) 7
43. Agar α – o`zgaruvchi miqdor bo`lsa, ning eng katta qiymati qanchaga teng bo`ladi? (00–1–30)
A) 9,5 B) 7 C) 8 D) 6,5 E) 7,5
44. y=(sin4x+cos4x)⁶ funksiyaning eng katta qiymatini toping. (00–9–34)
A) 64 B) 24 C) 32 D) 16 E) 8
45. y=(sin3x – cos3x)¹² funksiyaning eng katta qiymatini toping. (99–5–28)
A) 36 B) 32 C) 2¹² D) 64 E) 256
46. 2sin²β+cos²β ning eng kichik qiymatini toping.
(97–12–31)
A) 0,8 B) 1,2 C) 1 D) 0,9 E) 1,1
47. 2sin²x+cos²x ning eng katta qiymatini toping.
(96–6–32)
A) 1 B) 1,5 C) 2,6 D) 2 E) 2,5
48. 2sin²x+cos²x ning eng katta qiymatini toping.
(98–10–34)
A) 1,5 B) 2,5 C) 2 D) 1,8 E) 2,4
49. sin²x+2cos²x ning eng kichik qiymatini toping.
(97–2–32)
A) 0,9 B) 0,8 C) 1,2 D) 1 E) 1,5
50. sin²x+2cos²x ning eng katta qiymatini toping.
(97–8–32)
A) 1,2 B) 1,4 C) 1,6 D) 2 E) 1,8
51. 2sin²x+ cos2x ifodaning eng kichik qiymatini toping. (00–7–24)

52. funksiyaning eng kichik qiymatini toping. (99–8–72)

53. sin⁴α+cos⁴α ning eng kichik qiymatini toping. (99–9–30)

54. sin⁶x+cos⁶x ifodaning eng kichik qiymatini toping. (99–5–21)

55. [0;4,2π]kesmada f(x)=|cosx| funksiya necha marta eng kichik qiymatga erishadi? (00–1–43)
A) 3 B) 5 C) 4 D) 6 E) 7
56. ifodaning eng katta qiymatini toping. (00–9–35)
A) 5 B) 2 C) 3 D) 1 E) 4
57. (1+cos²2α)(1+tg²α)+4sin²α ifodaning eng kichik qiymatini toping. (99–10–28)
A) 2,5 B) 1,5 C) 2 D) 3 E) 3,5
58. ifodaning eng katta qiymatini toping. (99–5–30)
A) 2,2 B) 2,3 C) 2,4 D) 2,5 E) 2,6
59. Quyidagilardan qaysi funksiya sonlarda eng kichik qiymatga ega bo`ladi?
(00–2–31)
A) y=cos(3x+π) B) y=8sin6x C) y=cos3x
D) y=cos6x E) y=sin3x
60. k ning qanday qiymatlarida y=1+k²sin²x funksiyaning eng katta qiymati 10 bo`ladi?
(97–4–39)
A) 9 B) -9 C) 3 D) -5; 3 E) 3; -3
61. k ning qanday qiymatlarida y=6+k³cos4x funksiyaning eng katta qiymati 70 bo`ladi?
(97–9–99)
A) 4 B) 6 C) -4 D) ±4 E) ±6
62. t ning qanday qiymatida y=1–cos2x–t(1+cos2x) funksiyaning qiymati o`zgarmas bo`ladi? (99–9–35)
A) 1 B) 2 C) -2 D) -1 E) -1,5
63. Ma’noga ega ifodalarni ko`rsating. (97–4–37)

A) 1); 2) B) 1); 2); 3) C) 2); 3)
D) 1); 2); 3); 4) E) 3); 4)
64. Ma’noga ega ifodalarni ko`rsating. (97–9–97)

A) 1); 2) B) 2); 4) C) 3); 4)
D) 1); 3); E) 2); 3)
65. Quyidagi sonlarning eng kattasini toping.
(98–11–98)
A) sin170⁰ B) sin20⁰ C) sin(-30⁰)
D) sin(-250⁰) E) sin100⁰
66. Quyidagi sonlarning eng kattasini toping.
(00–1–25)
A) sin1 B) C) sin4
D) E)
67. sonlar uchun quyidagi munosabatlardan qaysi biri o`rinli?
(97–3–57)
A)z>y>x B)x>z>y C)y>x>z D)x>y>z E)y>z>x
68. sonlarni kamayish tartibida yozing.(97–7–57)
A)x>y>z B)y>x>z C)x>z>y D)y>z>x E)z>y>x
69. sonlar uchun quyidagi munosabatlardan qaysi biri o`rinli?
(97–10–57)
A)x70. p=sin189⁰, q=cos242⁰ va r=cos88⁰ sonlarni kamayish tartibida yozing. (98–2–23)
A)q>p>r B)p>q>r C)p>r>q D)r>q>p E)q>r>p
71. m=cos75⁰, n=sin50⁰, p=sin45⁰ va q=cos85⁰ sonlarni o`sish tartibida yozing. (98–8–63)
A) q D) p72. n=cos75⁰, p=tg75⁰, q=ctg75⁰ sonlarni kamayish tartibida yozing. (98–12–57)
A) p>m>q>n B) p>m>n>q C) p>n>m>q
D) m>p>q>n E) q>p>m>n
73. k=tg248⁰, t=cos32⁰ va q=sin112⁰ sonlarni o`sish tartibida yozing. (99–10–26)
A)q74. a=cos(-13<sup>0</sup>), b= -sin(-75<sup>0</sup>) va c=sin100<sup>0</sup> sonlarni o`sish tartibida yozing. (99–6–32)
A)b0, n=cos220⁰ va q=ctg184⁰·sin4⁰ sonlarni kamayish tartibida yozing. (99–9–27)
A) n>q>m B) n>m>q C) q>m>n
D) q>n>m E) m>n>q
76. x=sin60⁰, y=cos(-600⁰) va sonlarni kamayish tartibida yozing. (99–1–50)
A)z>x>y B)x>y>z C)y>z>x D)z>y>x E)y>x>z
77. sonlar uchun quyidagi munosabatlardan qaysi biri o`rinli?
(96–7–57)
A)x78. Tengsizliklardan qaysi biri noto`g`ri? (00–7–28)
A)sin65⁰>cos35⁰ B)tg17⁰0 C)cos15⁰>cos35⁰
D) cos40⁰>sin80⁰ E) ctg14⁰0
79. x=arccos0,9; y=arccos(-0,7) va z=arccos(-0,2) sonlarni o`sish tartibida yozing. (98–6–49)
A)y80. sonlarni kamayish tartibida yozing. (99–2–25)
A) m>p>n B) m>n>p C) n>m>p
D) p>n>m E) p>m>n
81. Agar |a|≤1, |b|≤1 bo`lsa, arccosa-4arcsinb ifodaning eng katta qiymati qanchaga teng bo`ladi? (98–11–64)
A) 2π B) 1 C) 3π D) 5π E) 4π
82. Rasmda quyidagi funksiyalardan qaysi birining grafigi tasvirlangan? (98–3–56)


83. Rasmda quyidagi funksiyalardan qaysi birining grafigi tasvirlangan? (98–10–103)


84. tenglamani yeching. (98–3–58)

85. tenglamani yeching. (96–11–60)

86. tenglamani yeching.
(96–12–44)

87. tenglamani yeching. (96–6–43)

88. tenglamani yeching. (97–2–43)

89. tenglamani yeching. (97–12–42)

90. tenglamani yeching. (98–12–58)

91. Quyidagi sonlardan qaysi biri tenglamani ildizi emas? (97–1–53)
A) 5 B) 1996 C) 1 D) 9 E) 65
92. Quyidagi sonlardan qaysi biri tenglamani ildizi emas? (97–1–53)
A) 1996 B) 3 C) 4 D) 40 E) 100
93. sinx·cos2x+cosx·sin2x=0 tenglamani yeching.
(96–3–60)

94. cos3x·cosx+0,5=sin3x·sinx tenglamani yeching. (96–1–58)

95. sinx·cos3x+cosx·sin3x=0 tenglamani yeching.
(96–12–53)

96. sin5x·cos2x=cos5x·sin2x–1 tenglamani yeching. (96–10–28)

97. cos2x·sin3x+sin2x·cos3x= tenglamani yeching. (96–11–10)

98. tenglamani yeching. (97–8–42)

99. tenglamani yeching. (97–1–54)

100. tenglamani yeching. (97–6–54)

101. tenglamaning eng kichik musbat ildizini toping. (97–1–51)

102. tenglamani yeching.
(99–2–28)

103. tenglamani yeching.
(99–9–34)

104. tenglamani yeching.
(99–3–37)

105. tenglamani yeching. (00–3–51)

106. tenglamani yeching. (98–2–26)

107. tenglamani yeching.
(98–6–50)

108. tenglamani yeching. (00–8–63)

109. tenglamani yeching. (96–9–104)

110. tenglamani yeching. (97–1–46)

111. tenglamani yeching. (97–6–45)

112. tenglamani yeching. (97–11–45)

113. tenglamani yeching.
(00–5–41)

114. tenglamani yeching.
(00–9–38)

115. tenglamani yeching.
(99–10–34)

116. tenglamaning ildizlari yig`indisini toping. (00–4–47)
A) 2π B) 5π C) 6π D) 3,5π E) 4,5π
117. tenglamani yeching.
(00–5–42)

118. tenglamani yeching.
(98–11–99)

119. tenglamani yeching. (00–8–47)

120. tenglamani yeching. (00–10–45)

121. tenglamani yeching. (98–9–26)

122. tenglamani yeching. (98–8–56)

123. tenglamani yeching. (98–1–56)

124. tenglamaning eng kichik musbat ildizini toping. (98–11–102)

125. tenglamani yeching.
(99–5–32)

126. tenglamani yeching.
(97–5–32)

127. tenglamani yeching.
(97–9–32)

128. tenglamani yeching. (98–5–50)

129. tenglamani yeching. (97–7–58)

130. tenglamani yeching. (97–3–58)

131. tenglamani yeching. (97–3–58)

132. tenglamani yeching. (99–8–77)

133. tenglamani yeching. (99–7–48)

134. tenglamani yeching. (96–7–58)

135. tenglamaning (0;2π) oraliqqa tegishli yechimlarini toping. (97–9–100)

136. tenglamaning (0;2π) oraliqqa tegishli yechimlarini toping. (97–4–40)

137. Agar 90⁰0 bo`lsa, tenglamaning ildizlarini toping. (96–1–60)
A)120⁰ B)110⁰ C)170⁰ D)135⁰ E)135⁰ va 165⁰
138. tenglamaning [0⁰;60⁰] oraliqdagi ildizini toping. (97–12–63)
A) 0⁰ B) 30⁰ C) 45⁰ D) 15⁰ E) 60⁰
139. tenglamaning (0⁰; 90⁰] oraliqdagi ildizini toping. (97–1–50)
A) 30⁰ B) 45⁰ C) 60⁰ D) 90⁰ E) 75⁰
140. tenglamaning [0; 2π] kesmadagi eng katta va eng kichik ildizlari ayirmasini toping. (00–3–52)

141. tenglamaning (90⁰;180⁰] oraliqdagi ildizini toping. (97–6–49)
A) 120⁰ B) 135⁰ C) 150⁰ D) 180⁰ E) 
142. tenglamaning (180⁰;540⁰) intervalga tegishli ildizlari ayirmasining modulini toping. (99–3–35)
A) 120⁰ B) 135⁰ C) 240⁰ D) 180⁰ E) 360⁰
143. ctg(x+1)·tg(2x–3)=1 tenglamaning (π;2π) oraliqdagi yechimini toping. (99–1–44)
A) 4 B) 2 C) 3 D) 5 E)
144. tenglamaning [0⁰;180⁰] kesmadagi ildizlari yig`indisini toping. (00–5–70)
A) 135⁰ B) 150⁰ C) 210⁰ D) 215⁰ E) 225⁰
145. Agar 0⁰0 bo`lsa, tenglamaning (0⁰;180⁰) oraliqdagi ildizini toping. (96–10–54)
A)60⁰ va 75⁰ B)120⁰ C)90⁰ D)45⁰ E)45⁰ va 135⁰
146. funksiya [0;2π] kesmada nechta nollarga ega bo`ladi? (99–8–71)
A) 4 B) 5 C) 3 D) 2 E) 1
147. tenglama [0;2π] oraliqda nechta ildizga ega? (98–8–59)
A) 5 B) 4 C) 3 D) 2 E) 1
148. tenglama [0;π] kesmada nechta ildizga ega? (98–1–59)
A) 1 B) 2 C) 4 D) 3 E) 5
149. tenglama [0;2π] oraliqda nechta ildizga ega? (00–10–57)
A)  B) 7 C) 4 D) 8 E) 9
150. tenglama [0;2π] kesmada nechta ildizga bor? (98–3–59)
A) 4 B) 8 C) 2 D) 1 E) 3
151. tenglama [–π; 2π] kesmada nechta ildizga bor? (97–1–61)
A) 0 B) 1 C) 2 D) 3 E) 4
152. tenglama [0; 2π] kesmada nechta ildizga bor? (96–13–43)
A) 1 B) 2 C) 4 D) 3 E) 5
153. tenglama [0;2π] kesmada nechta ildizga bor? (96–12–97)
A) 3 B) 4 C) 0 D) 2 E) 1
154. tenglama [0;2π] kesmada nechta ildizga bor? (96–9–90)
A) 0 B) 2 C) 3 D) 1 E) 4
155. tenglama [–π; π] kesmada nechta ildizga bor? (97–6–61)
A) 0 B) 1 C) 2 D) 3 E) 4
156. tenglamaning [0;3] oraliqda nechta ildizga bor? (96–12–97)
A) 1 B) 2 C) 3 D) 4 E) cheksiz ko`p
157. tenglama [0;5π] oraliqda nechta ildizga ega? (97–3–59)
A) 5 B) 4 C) 3 D) 2 E) 6
158. tenglama [–π; 3π] oraliqda nechta ildizga ega? (96–7–55)
A) 7 B) 2 C) 3 D) 5 E) 4
159. tenglama [–π; π] oraliqda nechta ildizga ega? (99–5–55)
A) 1 B) 2 C) 3 D) 4 E) 5
160. tenglama [0;4π] oraliqda nechta ildizga ega? (97–7–59)
A) 5 B) 4 C) 7 D) 2 E) 6
161. tenglama [–2π;2π] oraliqda nechta ildizga ega? (97–12–65)
A) 6 B) 4 C) 3 D) 2 E) 1
162. tenglamaning [0;4π] kesmada nechta ildizga bor? (98–3–58)
A) 8 B) 6 C) 4 D) 2 E) 12
163. tenglamaning [0;2π] kesmada nechta ildizga bor? (98–3–58)
A)  B) 1 C) 2 D) 3 E) 4
164. tenglama [–π;2π] oraliqda nechta ildizga ega? (99–5–27)
A)  B) 1 C) 2 D) 3 E) 4
165. tenglama [–3π;3π] oraliqda nechta ildizga ega? (99–5–31)
A)  B) 1 C) 2 D) 3 E) 4
166. 1+tg⁴x=cos²2x tenglamaning [–2π; 2π] kesmada nechta ildizga bor? (99–4–54)
A) 6 B) 5 C) 4 D) 2 E) 1
167. 3sin4x–2cosx=5 tenglamaning [–2π;3π] oraliqda nechta ildizga ega? (00–9–33)
A)  B) 1 C) 3 D) 4 E) 5
168. tenglama [–2π;2π] oraliqda nechta ildizga ega? (00–9–37)
A)  B) 1 C) 2 D) 3 E) 4
169. cosxcos2xcos4x=1 tenglama [–2π;2π] oraliqda nechta ildizga ega? (00–6–55)
A) 1 B) 2 C) 3 D) 4 E) 
170. tenglamaning ildizlari nechta? (99–5–16)
A)  B) cheksz ko`p C) 1 D) 2 E) 3
171. cos⁴x+sin³x=1 tenglamaning kesmada nechta ildizga bor? (00–9–59)
A) 4 B) 8 C) 6 D) 7 E) 5
172. tenglamaning ildizlari nechta? (99–5–16)
A)  B) 1 C) 2 D) 3 E) 4
173. Qaysi α o`tkir burchak uchun tenglik to`g`ri? (00–3–53)
A) 7,5⁰ B) 22,5⁰ C) 75⁰ D) 67,5⁰ E) 15⁰
174. Agar va bo`lsa, α ning qiymatini toping. (99–3–34)

175. Agar bo`lsa, α+β nimaga teng bo`ladi? (00–1–32)

176. bo`lsa, x ni toping. (97–6–63)

177. Agar bo`lsa, α–β ning qiymatlarini toping. (00–7–30)

178. y va t tenglikni qanoatlantiradi. ni hisoblang. (00–9–29)

179. x va z tenglikni qanoatlantirsa. |x+3|^x ning qiymatini toping.
(99–5–20)
A) 9 B) 0 C) 3 D) 1 E) 27
180. k ning quyidagi ko`rsatilgan qiymatlaridan qaysi birida tenglamani ildizlari bo`ladi? (97–4–42)
A) 5 B) 4 C) 6 D) 7 E) 8
181. k ning quyidagi ko`rsatilgan qiymatlaridan qaysi birida tenglamani ildizlari bo`ladi? (97–9–102)
A) 2 B) 3 C) 4 D) 5 E) 6
182. 1+acosx=(a+1)² tenglama hech bo`lmaganda bitta yechimga ega bo`ladigan a ning nechta butun qiymati mavjud? (98–12–78)
A) 4 B) 3 C) 5 D) 2 E) 1
183. cosx+cos(120⁰–x)=b tenglama yechimga ega bo`ladigan b ning barcha qiymatlarini toping.
(98–2–27)
A)0≤b≤1 B)–1≤b≤1 C)–1184. sin⁴x+cos⁴x=a tenglama a ning qanday qiymatlarida yechimga ega? (00–4–1)

185. sin⁴x+cos⁴x=a·sinx·cosx tenglama ildizga ega bo`ladigan a ning barcha qiymatlarini ko`rsating.
(99–5–29)
A) [1;∞) B) [–1; 1] C) [1; 5]
D) (–∞; –1]U[1; ∞) E) [–3; –1]U[1; 3]
186. a(sin⁶x+cos⁶x)=sin⁴x+cos⁴x tenglama ildizga ega bo`ladigan a ning barcha qiymatlarini ko`rsating.
(00–9–36)
A)[–1;1] B)[0;1] C)[1;2] D)[1;1,5] E)[1;2,5]
187. sin(60⁰+x)-sin(60⁰-x)=k tenglama k ning qanday qiymatlarida yechimga ega? (98–9–25)

188. a ning qanday qiymatlarida log_asinx=1 tenglama yechimga ega? (99–2–37)

189. Agar bo`lsa, o`rinli bo`ladigan a ning barcha qiymatlarini toping. (00–4–44)
A) [2,5;∞) B) [0; ∞) C) [0; 1,6]U[2,5; ∞)
D) [0; 1,5]U[3,6; ∞) E) [–3; 1,6)U[2,5; ∞)
190. tengsizlikni yeching. (99–1–43)

191. tengsizlikni yeching.
(96–9–105)

192. tengsizlikni yeching. (98–5–51)

193. tengsizlikni yeching. (99–7–49)

194. tengsizlikni yeching.(97–9–101)

195. tengsizlikni yeching.
(98–1–60)

196. tengsizlikni yeching.
(98–1–60)

197. tengsizlikni yeching.
(98–8–60)

198. tengsizlikni yeching. (99–3–38)

199. tengsizlikni yeching.
(97–4–41)

200. tengsizlikni yeching. (96–1–59)

201. tengsizlikni yeching. (00–6–56)

202. tengsizlikning [0; π] kesmadagi yechimini toping. (98–6–55)

203. Qaysi funksiya oraliqda faqat musbat qiymatlarni qabul qiladi? (00–2–30)

204. tengsizlik [–π; π] kesmada nechta butun yechimga ega? (00–3–55)
A) 4 B) 3 C) 6 D) 5 E) 2
205. tengsizlik ning qanday qiymatlarida o`rinli? (96–9–51)

206. tengsizlik ning qanday qiymatlarida o`rinli? (96–12–111)

207. tengsizlik ning qanday qiymatlarida o`rinli? (96–13–26)

208. tengsizlik ning qanday qiymatlarida o`rinli? (98–3–60)

209. |sinx+1|>1,5 tengsizlik x ning (0;π) kesmaga tegishli qanday qiymatlarida o`rinli bo`ladi?
(98–2–28)

210. tengsizlikning [0; 2π] oraliqdagi eng katta va eng kichik yechimlari ayirmasini toping. (99–2–29)

211. x ning (–π; π) oraliqda tegishli qanday qiymatlarida tengsizlik o`rinli bo`ladi? (98–9–24)

212. tengsizlikni yeching.(99–9–33)

213. tengsizliklar sistemasining eng katta va eng kichik yechimlari ayirmasini toping.
(99–10–33)

214. tengsizlikni yeching. (98–11–100)

215. tengsizlikni yeching.
(98–11–72)

216. To`g`ri tengsizlikni aniqlang. (00–10–78)

217. tengsizlikni yeching.
(99–4–56)

218. tengsizlikni yeching. (99–4–53)
A)[–1;0) B)[–2;–1] C)–2;–1 D)–1 E)(–3;0)U(0;1)
219. tengsizlikni yeching.
(00–9–28)

220. tengsizlikning [0; π] oraliqdagi tegishli barcha yechimlarini aniqlang.
(99–5–19)

221. Agar bo`lsa, |x+3|<sup>3</sup> ning qiymati nechaga teng bo`ladi? (00–9–32)
A) 1 B) 8 C) 27 D) 64 E) 0
222. tenglamaning ildizlarini yig`indisini toping. (00–1–33)

223. Agar 4arccosx+arccosx = π bo`lsa, 3x² ning qiymatini hisoblang. (99–5–26)
A) 0 B) 1 C) 3 D) 0,75 E) 1,5
224. Agar |a|=1 bo`lsa, actgx–1=cos2x tenglama [0;2π] kesmada nechta ildizga ega bo`ladi?
(00–2–47)
A) 4 B) 2 C) 3 D) 5 E) 6
225. tenglamaning eng kichik ildizini toping. (98–6–53)

226. tenglamaning nechta ildizi bor? (00–10–25)
A) 2 B) 1 C)  D) cheksiz ko`p E) 3
227. tenglamaning nechta ildizi bor? (98–11–30)
A) 1 B)  C) 2 D) cheksiz ko`p E) 3
228. tengsizlikni yeching.
(98–11–74)
A) (0;1) B) (-1;0) C) [-1;1]
D) (-∞;0)U(1;∞) E) (1;∞)
229. arcsinx (98–6–51)

230. tengsizlikni yeching.

(98–8–74)
A)(1;3] B)(-1;1) C)[1;∞) D)(3;∞) E) (1;3)
231. x²–4x·arccos(x²–4x+5)<0 tengsizlikni yeching. (00–10–65)
A) {2} B) (1;5) C) (-2;3) D)(arccos1;10)
E) yechim yo`q
232. tenglamani yeching. (96–11–50)

233. tenglamani yeching. (96–3–59)

234. tenglamani yeching. (96–12–52)

235. tenglamani yeching. (96–13–54)

236. tenglamani yeching. (96–12–98)

237. tenglamani yeching. (96–9–45)