Fan: algebra Sinf : 7G,E, j sana



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7- sinf algebra 3- chorak

II – variant

1. Hisoblang: . A) 4 B) 2 C) D) .

2. Hisoblang: . A) 1 B)16 C) 4 D) 256

3. n ning qanday qiymatida tenglik to`g`rib o`ladi: (73)n = 715. A) 1 B) 7 C) 5 D) 12

4. Birhadning son qiymatini toping: , bunda m = 3, n = -35. A) -7 B) -1 C) 7 D) 9

5. Birhadlarni ko`paytiring: .

A) -28a6b6c8 B) -14 a5b7c7 C) - a6b6c8 D) -21 a6b10c12

6. Ko`phadning son qiymatini toping: x2 - 2xy +y2, bunda x = y = 1,1. A) 1,331 B) 0 C) 1 D) 1,21

7. Ko`phadni standart shaklga keltiring: .

A) B) C) 2x2y D) 2x2y + a2b

8. Agar P = 7p2 – 5q3, Q = 6p2 – 5q3 bo`lsa, P – Q ifoda nimaga teng ?

A) p2 – 10q3 B) 13p2 + 10q3 C) -10q3 D) p2

9. Algebraik ifodaning qiymatini toping:

4ab(3a2 – b2) + 3ab(b2- 4a2), bunda a = -5, b = 10. A) 5000 B) -5000 C) -2500 D) 2500

10. Ko`phadlarni ko`paytiring: (4x + 7y) (16x2 – 28xy + 49y2).

A) 64x3 + 56xy – 56x2y + 243y3 B) 64x3 + 343y3

C) 16x3 + 28x2y – 28x2y + 343y3 D) 64x3 –128x2y2 + 343y3

11. Ifodani soddalashtiring: (5a3 – 8a2) : a2 + (15a2 + 24a) : (3a).

A) 25a + 16b B) 5a + 16b C) 10a D) 16b

12. Hisoblang: . A) B) C) 16 D) 4

13. Hisoblang: A) ab2 B) a3b6 C) a2 b4 D)

14. Ko`phadlarni ko`paytiring: (a2 –b2)(a2 + b2)(a4 + b4). A) a6 – b6 B) a8 – b8 C) a6 – b8 D) a8 + b6

15. Ifodani soddalashtiring: (32a4 + 12a2) : 4a2 – 3a(3a + ).

A) a2 B) 23a2 -3a - C) - a2 D) - a2 + 6

16. Bo`lishni bajaring: ( 28a3b2 - 20a2b3 +a2b2 ) : (4a2b2).

A) 7a + 5b + B) 7a +5b +4 C) 7ab – 4 D) 7a - 5b +

17. Hisoblang: . A) B) 41 C) D) 1681

18. To`g`ri chiziqqa unda yotmagan nuqta orqali nechta parallel to`g`ri chiziq o`tkazish mumkin ?

A) istalgancha B) 1 C) 2 D) 4

19. Ikki to`g`ri chiziqning kesishishidan hosil bo`lgan burchaklardan ikkitasining yig`indisi 1000. Bu burchaklarni toping. A) 250 , 750 B) 400 , 600 C) 500 , 500 D) 450, 550

20. Teng yonli uchburchakning asosi yon tomonidan 5 birlikka ortiq, perimetri 50 ga teng bo`lsa uchburchakning yon tomonini toping. A) 20 B) 10 C) 12 D) 15

21. Teng yonli uchburchakning perimetri 60, yon tomoni 22 ga teng. Uning asosini toping.

A) 16 B) 18 C) 12 D) 14

22. Uchburchakning ikki tomoni o`rtalarini tutashtiruvchi kesma nima deb ataladi ?

A) balandlik B) o`rta chiziq C) bissektrisa D) mediana

23. Uchburchakning bir uchidan chiqib shu uchdagi burchakni teng ikkiga bo`luvchi kesma nima deb ataladi

A) balandlik B) o`rta chiziq C) bissektrisa D) mediana

24. Teng yonli uchburchakning perimetri 64 ga teng. Uning tomonlaridan biri 16 ga teng bo`lsa, qolgan tomonlarini toping. A) 18; 18 B) 16; 16 C) 18; 24 D) 24; 24

25. Teng yonli uchburchakning perimetri 48 ga, tomonlaridan biri esa 18 ga teng. Uchburchakning qolgan ikki tomonining uzunliklarini toping.

A) 15 va 15 yoki 18 va 12 B) 15 va 15 C) 18 va 12 D) bunday uchburchak mavjud emas




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