TEST T1
1. 111213…7980 sonning raqamlari yig’indisini toping.
A) 602 B) 405 C) 648 D) 600
2. 3, 6, 7, 5 raqamlaridan tuzilgan to’rt xonali sonlarning nrchtasi 4 ga bo’linadi?
A) 4 B) 5 C) 6 D) 7
3. Sonni beshga bo’lganda 4 qoldiq qoladi. Shu sonning kubini 5 ga bo’lganda necha qoldiq qoladi.
A) 6 B) 4 C) 3 D) 2
4. 72 va 96 sonlarining EKUKini EKUBiga nisbatini toping.
A) 10 B) 9 C) 12 D) 0,5
5. 100476000006+256789256789 yig’indining oxirgi raqamini toping.
A) 6 B) 7 C) 8 D) 9
6. 7-10+15-18+23-26+…+95-98=?
A) -56 B) -36 C) -45 E)-63
7.
A) 0,02 B) 4 C) 0,01 D) 2/300
8. bo’lsa,
A) b-3 B) 4-b C) 3-b D) 3+b
9. ab=9 va 3b=8,1c bo’lsa, ac=?
A) B) C) D)
10. 0,0015·0,016 ko’paytma quyidagilardan qaysi biriga teng emas?
A) 2,4·10-5 B) 240·10-7 C) 24·10-6 D) 0,0024·10-3
11.
A) 2 B) 1 C) 2/3 D) 1/3
12. Quyidagi sonlardan qaysilarini chekli o’nli kasr ko’rinishiga keltirib bo’lmaydi?
1) 35/88 2) 4/125
3) 34/75 4) 33/240
A) 1;2 B) 3;4 C) 1;3 D) 2;4
13. a(b+c–bc)–b(c+a–ac)–c(b+a) ni soddalashtiring.
A) 2ac-2bc B) -2abc
C) -2bc D) ab-ac
14. a+a–1=3 bo’lsa, (a6+1)/(9a3)=?
A) 18 B) 6 C) 2 D) 1
15. (3x+1)(3x-1)+4y(4y-6x)+8 ifodaning eng kichik qiymatini toping. A) 2 B) 3 C) 7 D) 8
16. a4+4b4 ni ratsional ko’paytuvchilarga ajrating.
A) (a2-2b2)(a2+2b2)
B) (a2-2ab+2b2)(a2+2ab+2b2)
C) (a2-b2)(a2+4b2)
D) (a2+2ab+2b2)(a2-2ab-2b2)
17. ifoda n ning nechta natural quymatida natural son bo’ladi?
A) 3 B) 1 C) 5 D) 2
18. a+b+c=0 bo’lsa, a3+a2c-abc+b2c+b3=?
A) 0 B) 1 C) 2 D) -1
19.
A) 2 B) 4 C) 0 D) 5
20. bo’lsa,
2a2-5ab+2b2=?
A) 47 B) 2 C) 3 D) 49
21. kasr maxrajidagi irratsionallikni yo’qoting.
A) B)
C) D)
22.
A) B) C) 0 D)
23. bo’lsa,
A) B) C) D) 0
24.
A) B) C) D)
25. y minutda x mm yomg’ir yog’adi. 3,5 soatda necha mm yomg’ir yog’adi?
A) 150x/y B) 180y/x C) 210y/x D) 210x/y
26. (32+1)(34+1)(38+1)·…·(3512+1)x=31024-1 tenglamani yeching.
A) 8 B) 1/8 C) 1 D) -1
27. Ildizlaridan biri bo’lgan ratsional koeffitsiyentli kvadrat tenglama tuzing.
A) x2+6x+4=0 B) x2-6x+7=0
C) x2-6x+5=0 D) x2-6x-5=0
28. x2+6x–4=0 tenglama ildizlariga teskarilariga qarama-qarshi ildizli kvadrat tenglama tuzing.
A) 4x2 –6x–1=0 B) 4x2+6x–1=0
C) 6x2+4x+1=0 D) 6x2+4x–1=0
29. (x2+x+1)(x2+x+2)=12 tenglama ildizlari yig’indisini toping.
A) -1 B) 1 C) -2 D) 2
30. k ning qanday qiymatlarida tenlama menfiy yechimga ega bo’ladi?
A) (-1;2) B) (-∞;-2)U(2;∞)
C) (-2;1) D) (-∞;-2)U(1;∞)
31. 3x2+2x+b=0 tenglamada 2x1=-3x2 bo’lsa, b=?
A) -8 B) 6 C) 4 D) -3
32. 7x2+(5k2-6k-11)x-k4=0 tenglama ildizlari qarama-qarshi sonlar bo’ladigan k ning barcha qiymalari yig’indisini toping.
A) 1,4 B) 1,2 C) 1,8 D) 1,6
33. a, b va c ning qanday qiymatlarida tenglik ayniyat bo’ladi?
A) -1;1;1 B) 0;1;2 C) 1;-1;1/2 D) 2;-2;1/2
34.
A) 1/4 B) 1 C) -1/2 D) -3/4
35.
A) 36 B) 42 C) 81 D) 25
36. m ning qanday qiymatlarida tenglamaning yechimi koordinata tekisligining IV choragiga tegishli bo’ladi?
A) (3/2;2) B) (3/2;-2) C) (-∞;5/3) D) (2;∞)