Matematika variant №9

Matematika

VARIANT № 9

1. a va b ning qanday qiymatlarida (a⁴-b⁴)x=(a+b) ² yagona yechimga ega bo’ladi?

1. a # b 2. IaI # IbI 3. a=b 4. a+b# 0 5. javob yo’q.

2. 200 so’mga 4 ta ruchka va 4 ta daftar yoki 12 ta ruchka, 3 ta daftar olish mumkin. 12 ta daftar necha so’m turadi.

1. 400 2. 480 3. 560 4. 640 5.720

3. y=x²-4x+7 parabolaning uchini toping.

1.(2;3) 2.(2;-3) 3.(4;7) 4.(0;0) 5.(0;2)

4. 2a+3v+4s=9 va 4a+3v+2s=15 bulsa a+v+s ning qiymatini toping.

1. -6 2. -4 3. 0 4. 4 5. 6

5. Kvadratning tomoni ga teng. Kvadratga tashki chizilgan aylana uzunligini toping.

1. 4П 2. 2П 3. 5П² 4. 6П 5.8П

6. a, b, s ketma-ket toq sonlar bo’lsa

1. 8 2. 6 3. 4 4. 2 5. 1

7.

1. 1 2. 2 3. 4 4. –2 5. -1

8. (0.5) > (0.25) tengsizlikni yeching.

1. (-4; ) 2. (-;-4) 3.bo’sh to’plam 4.(-;+ ) 5. (0;+ )

9. funktsiyaning aniqlanish soxasinii toping.

1.(- ;8] 2.[8;+ ) 3.(- ;-8] va (8;+ ) 4.(8;-8) 5.(- ;+)

10. tenglamani yeching.

1.yechim yo’q 2. 3 3. -1 4. 1 5. 0

11. Tenglamalar sistemasini yeching.

1. x=1, y=3 2. x=1, y=±3 3.x=-1, y=-3 4.x=1, y=1/3 5. x=0, y=1/3

12. 54³⁵+28²¹ yig’indi qanday raqam bilan tugaydi?

1. 2 2. 4 3.6 4.1 5.8

13. Qanday vektor y=2x² parabolani y=2(x-3)² parabolaga o’tkazadi.

1. (3,0) 2. (-3,0) 3.(0,3) 4.(0,-3) 5.(2,3)

14. ni soddalashtiring.

1. 2sinl 2.1 3.2 4.ctg²l 5.tg²l

15.Tomonlari 5, 5, 6 ga teng bo’lgan uchburchakning yuzini toping.

1. 16 2. 25 3.12 4.150 5.17

16. Bir son ikkinchisidan oltitaga ortiq. Ularning o’rta arifmetigi 20 ga teng. Shu sonlarning kattasini toping.

1. 27 2. 34 3.17 4.23 5.24

17. Soddalashtiring.

1. x-1 2.x+1 3.1 4.1-x 5.1/x

18. a ning qanday qiymatlarida x+(a-1)x-2a=0 tenglama ildizlari kvadratlarining yigindisi 9 ga teng bo’ladi.

1. 12 2.10 3.4 4.2 5.17

19.Tengsizlikni yeching.

1. 2 < x < 4 2. 0 < x < 2 3.-1 < x < 2 4.-4 < x < -2 5. x < 0

20.Xisoblang.

1. 2 2.1 3.12 4.7.5 5.0

21. Xisoblang.

1. 1 2.2 3.3 4.0 5.82

22.Muntazam sakkiz burchakniing ichki burchaklari yig’indisi necha gradusga teng.

1. 360° 2.450° 3.720° 4.1080° 5.1440°

23.Tashqi burchagi 24° bo’lgan muntazam ko’pburchakning nechta tomonlari bor?

1. 10 2.12 3.13 4.15 5.20

24. 1+2+3+.....+100 yigindinii toping.

1. 5000 2.5020 3.5040 4.5050 5.5060

25.Parallelepiped xajmini ifodalovchi formulani belgilang.

1. V=1/3S_yonH 2. V=S_ash 3. V=1/3PR²h 4. V=PR²1/2(R²+rR+r²)

5.V=4/3PR³

26. Agar x²+5y²+4xy+2y+1=0 bo`lsa x+y ni topilsin.

1. 3 2. 1 3. 2 4. 0 5. -2

27. (2x+1)²=3x+6 tenglamani yechimlari yig`indisini toping.

1. ¼ 2. –1 3. 1,2,5 4. -5/4 5. -1/4

28. 2 ta ikki xonali aa va bb sonlarni yig`indisi uch xonali son sbc bo`lsa a+b+c ni toping.

1. 4 2. 6 3. 8 4. 10 5. 12

29. Agar xy-x=15 va y-1=5, bo`lsa x ni topilsin.

1. 20 2. 15 3. 5 4. 4 5. 3

30. |2x+4|-3x+2 tengsizlikni yeching.

1. [2;+ ) 2. (-;2) 3. (-2;2) 4. [-2; ) 5. (-; )