Oylik test-2 + ni hisoblang

OYLIK TEST-2
1. + ni hisoblang.
A) -1 B)0 C)1 D)2
2.Ifoda qiymatining oxirgi raqamini toping.
A) 1 B) 7 C) 5 D) 310.
3. 2234 va 2235 sonlarining umumiy natural bo’luvchilari nechta?
4. Quyidagilardan o’zaro tub sonlarni toping.
1) (169;143); 2) (n;n+1), nϵN;
3) (n;n+2), nϵN; 4) (121;144) A)1,2 B)1,3 C)2,4 D)1,4
5. 2013²⁰¹⁵ ni 10 ga bo’lgandagi qoldiqni toping.
A)1 B)3 C)9 D)7
6. soni necha xonali?
A) 90 B) 152 C) 81 D) 153
7. 33 sonini kanonik ko’rinishda yozing.
A) B) C) D)
8. 1440 sonining barcha natural bo’luvchilari yig’indisini toping. A)6198 B)2317
C)5225 D)4914
9. Hisoblang.
A)2 B)1 C) D)
10. Ifodani soddalashtiring.
A)1 B) +
C) D) .
11. tenglikda m va n lar o’zaro tub sonlar bo’lsa, ni toping.
A) 40 B) 41 C) 42 D) 39
12. 22-11a+a²+(5-a)x+x²=0 tenglamaning bitta ildizi 2dan kichik, ikkinchi ildizi 2 dan katta bo’ladigan a ning barcha qiymatlarini toping.
A) (4;9) B) (- ;4) (9; )
C) [4; ) D) (- ;9]
13. sistemaning yechimlari soni n bo’lsa, n(x²+y²) ifodaning qiymatini toping.
A) 20 B) 40 C) 10 D) 16
14. Tengsizlikni yeching:
.
A) B)
C) [ D)
15. Tenglamaning eng katta natural yechimi 5 dan qancha kam?
.
A) 3 B) 2 C) 4 D)0
16. Agar ­ va bo’lsa, quyidagi munosabatlardan qaysi biri o’rinli bo’ladi?
A) B)
C) D)
17. tenglama ildizlarining yig`indisini toping.
A)-8 B)-12 C)7 D)-13
18. tenglamalar sistemasini yeching va x+y ni toping. A) 225 B) 200 C) 220 D) 180
19. = tenglamani yeching.
A)0;2 B) C)0 D)2
20. Tengsizlikni yeching.
A) (16; ) B) (- )
C) [16; ) D) [0;16)
21. tenglamani yeching. A) 2304 B) C) 2209 D)2401
₂₂. tenglamani yeching. A) B) C) D)
23. tengsizliklar sistemasi nechta butun yechimga ega?
A) 6 B) 5 C) 4 D) 7
24. tengsizliklar sistemasi ning qanday qiymatlarida yechimga ega bo’lmaydi?

25. Ushbu a²<99 tengsizlikni qanoatlantiruvchi eng katta natural sonning natural bo’luvchilari yig’indisini toping.
A) 12 B) 10 C) 13 D)15
26. Tenglamalar sistemasi nechta yechimga ega?
A)4 B) 2 C)1 D)0
28.Agar a+b+c+d+5=a+1=b+2=c+3=d+4 bo’lsa,a+b+c+d ni toping.
A) B) C) D)
29. a ning qanday qiymatlarida x²+x-a²-2=0 tenglamaning ildizlaridan biri ikkinchisidan 5 ga kichik bo’ladi?
A) 0 B) 4 C)±2 D) ±4
30. Agar bo’lsa, a ni b orqali ifodalang.
A)
B) a= b;a= b;
C) a= b; a=2b
D) a= b; a= 0,5b
31. Agar tenglama cheksiz ko`p yechimga ega bo`lsa, ning qiymatini toping.
A)5 B)4 C)3 D)6
32. Agar bo’lsa, ning qiymatini toping.
A)1.5 va 2.5 B)0.125
C)2 va -0.125 D)1.5
33. tenglamani yeching.
A) 60 B) 70 C) 36 D) 1
34. Ushbu tenglamani yeching.
A) 2- B)
C) 1- D)
35. soniga teskari sonni toping.
A) B) C) D)0,0(17)
36. 4¹⁰∙15³∙25⁸ ko’paytma necha xonali son bo’ladi?
A)23 B)21 C)20 D)22
37.Toq sonning kvadratidan bittaga kam bo`lgan son, qaysi songa qoldiqsiz bo`linadi?
A)10 B)4 C)12 D)6
38. n raqamining 40+n sonini eng kam tub ko`paytuvchilarga ajraladigan qiymatlari yig`indisini toping.
A) 10 B)9 C)11 D)12
39.Hisoblang:
A)2 B)3 C)4 D)1
40.
ni soddalashtiring.
A) B) C)
D)

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