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

II-variant

1. O’xshash hadlarni ixchamlang : a+b+c+c+a+b+b+c+a

a) 3a+3b+3c b) 3a-3b-3c c) qo’shilmaydi. d) 3a+3b-3c

2. Ratsional sonlar deb qanday sonlarga aytiladi?

a) bo’linmaydigan sonlarga b) kasr ko’rinishidagi sonlarga

d) har qanday sonlarga e) to’g’ri javob yo’q

3. Butun sonlar deb qanday sonlarga aytiladi?

a) manfiy sonlarga b) musbat sonlarga

d) manfiy, musbat va 0 sonlarga e) harq anday songa

4. 0 soni musbat yoki manfiy sonmi?

a) manfiy son b) musbat son

d) manfiy son ham musbat son ham emas. e) to’g’ri javob yo’q

5. b ning qanday qiymatlarida –6<6b tengsizlik to’g’ri bo’ladi?

a) b>0 b) b>-1 c) b<0 d) b>1

6. Hisoblang : (-15) : (-5) – 30 : (-6)

a) 8 b) 4 c) 7 d) 5

7. Tenglamani ildizini taqqoslang:

1) x = 28 – 6x 2) 2.2x + 7.7 = 3.30

a) 1>2 b) 1 = 2 c) 1<2 d) to’g’ri javob yo’q

8. Hisoblang : -3d+3d

a) 0 b) 6d c) –6d d) 1

9. Ifodaning koeffitsiyentini toping: -2.5a ^. 70 ^. 3.5c

a) 612.5 b) –612.5 c) 612.5 d) to’g’ri javob yo’q

10. (2)⁸ ni hisoblang

a) 256 b) 16 c) 28 d) -16

11. z=a+bi kompleks sondagi i soni nechaga teng?

a) i=-1 b) i=-1² d) i= e) i=

12. z=7-4i kompleks sonning haqiqiy qismini toping.

a) Re(z)=4i b) Re(z)=-4i d) Re(z)=7 e) Re(z)=i

13. z=8i+9 kompleks songa o’zaro qo’shma kompleks sonni toping.

a) z=8i-9 b) z=-8i-9 d) z=-8i+9 e) z=8i+9

14. –z=-6-5i kompleks songa qarama-qarshi kompleks sonni toping.

a) –z=6+5i b) –z=6-5i d) z=6+5i e) z=5i-6

15. Re(z)=-1 va Im(z)=-4i bo’lsa, kompleks sonni tuzing.

a) z=1-4i b) z=-1-4i d) z=1+4i e) z=-1+4i

16. A va B to’plamlarning kesishmasini 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

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

a) {3,9,10} b) {2} d) {2,3,4,7,9,10} e) to’g’ri javob yo’q

18. 72000 va 126000 ning EKUBni toping.

a) 9000 b) 18000 d) 36000 e) 2000

19. Quyidagi sonlar ichida nechta natural son bor? -4; -2; 1; 2; 2,4; 7; 7,8; 53; -79

a) 4 b) 3 d) 6 e) 7

20. 17827516 son quyidagi sonlardan qaysi biriga qoldiqsiz bo’linadi?

a) 3 b) 4 d) 6 e) 11

21. 3,(73) davriy kasrni oddiy kasr ko’rinishida ifodalang.

a) b) d) e)

22. | -7,35 | + | 4,65 | yig’indini hisoblang

a) 12 b) -12 d) -2,7 e) 10

23. | 25,6 | + |-74,4 | - | -100 | ni hisoblang.

a) 200 b) 1 d) 0 e) -148,8

24. –17+24+(-10)+(-18)+21

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

25. 1⁹⁹ ni hisoblang.

a) 1 b) 100 d) 99 e) 0