Boshlang’ich, oraliq va yakuniy nazorat ishlar to’plami I bosqich talabalari uchun boshlang’ich, oraliq va yakuniy nazorat ishlar

IV variant

1. A va B to’plamlarning birlashmasini toping. A={a,b,c,d,e,f }, B={e,f,k,l,m,n,p}

a) {a,b,c,d,k,l,m,n,p} d) {e,f}

b) {a,b,c,d,e,f,k,l,m,n,p} e) to’g’ri javob yo’q

2. F va E to’plamlarning ayirmasini toping. F={3,4,7,9,10,11,12} E={2,4,7,11}

a) {3,9,10} b) {3,9,10,12} d) {2,3,4,7,9,10} e) {3,10,12}

3. 4500 va 10800 ning EKUKni toping.

a) 54000 b) 5040 d) 40000 e) 2000

4. Quyidagi sonlar ichida nechta o’nli kasr bor? -4; -2; 1; 2; 2,4; 7; 7,8;

53; -7,9;

a) 4 b) 6 d) 3 e) -6

5. 17827516 son quyidagi sonlardan qaysi biriga qoldiqsiz bo’linadi?

a) 4 b) 6 d) 3 e) 13

6. 0,(45) davriy kasrni oddiy kasr ko’rinishida ifodalang.

a) b) d) e)

7. | -7,05 | + | 6,95 | yig’indini hisoblang

a) 12 b) -2,7 d) -12 e) 14

8. | 25,6 | - |-74,4 | + | -100 | ni hisoblang.

a) 200 b) 0 d) 51,2 e) -148,8

9. –17+24+(-10)+(-18)+21

a) 0 b ) 4 d) 2 e) 8

10. 1⁹⁹⁹ ni hisoblang.

a) 1 b) 999 d) 1000 e) 0

11. To’g’ri tasdiqni toping.

a) ZÌN b) NÌZ d) RÌQ e) CÌZ

12. 270 sonining natural bo’luvchilari nechta?

a) 15 b) 20 d) 17 e) 16

13. 1 dan 100 gacha bo’lgan sonlar ichida 9 raqami necha marta qatnashadi ?

a) 10 b) 20 d) 11 e) 12

14. Birhadlar ko’paytmasini toping. 4x⁷y⁹ * 55x⁹yz⁴

a) 220x¹⁶y¹⁰z⁴ d) 220x⁶³y⁹

b) 220x²y¹⁰z⁴ e) 220x³y⁹

15. Bo’lishni bajaring. (63t⁹d⁹ + 49t⁷d⁷) : (-7t⁵d⁵)

a) -9t⁴d⁴ + 7t²d² d) -9t⁴d⁴ - 7t²d²

b) 9t⁴d⁴ + 7t²d² e) 9t⁴d⁴ - 7t²d²

16. Ko’paytiring. -3a³b⁵ (7a⁵b⁶ + 5ab³)

a) 21a¹⁵b¹⁸ +15a³b¹⁵ d) 21a⁸b¹¹ - 15a⁴b⁸

b) -21a⁸b¹¹ - 15a⁴b⁸ e) -21a⁸b¹¹ + 15a⁴b⁸

17. Qavsni oching. (3x-1)²

a) 9x²-6x+1 b) 9x²-6x-1 d) 9x²-1 e) 9x²+1

18. Mavhum sonni toping.

a) √1 b) √-1 d) -1 e) 1

19. Berilgan kompleks songa qarama-qarshi kompleks sonni toping. z = - 7+8i

a) – z = 7-8i b) z = 7-8i d) - z = -7-8i e) - z = -7+8i

20. O’zaro qo’shma kompleks sonlar qoidasini toping.

a) faqat mavhum qismlari ishorasi bilan farq qilunchi

b) faqat haqiqiy qismlari ishorasi bilan farq qiluvchi

d) barcha qismlarining ishoralari bilan

e) haqiqiy va mavhum qismlari ishorasi bilan farq qiluvchi

21. Berilgan kompleks songa o’zaro qo’shma kompleks sonni toping: z = -9-7i

a) z = 9-7i b) z = 9 + 7i d) z = -9 + 7i e) -z -9 + 7i

22. x² - 81x=0 tenglamaning yechimini toping.

a) yechimga ega emas b) x_1,2=±9 d) x₁=0 x₂=81 e) x=9

23. Y’g’indini hisoblang. (3-9i)+(-7+25i)

a) 4 + 16i b) 10 + 16i d) -4 + 16i e) 10 - 16i

24. Tenglamani yeching. 4x²- 36=0 :

a) yechimga ega emas d) x_1,2=±3

b) x=3 e) x=-3

25. Bikvadrat tenglani ko’rsating.

a) x⁴-7x+8=0 b) x⁴-7x²+8=0 d) x²-7x+8=0 e) x⁴-7x⁴+8=0