1.   ni hisoblang. A   b   c   d   2

9-SINF MATEMATIKA
1. _{ } ni hisoblang.
A) _{ } B) _{ } C) _{ } D) _{ }
2. _{ } ifodaning qiymatini hisoblang.
A) _{ } B) _{ } C) 1 D) _{ }
3. Agar x⁴-5x²-5=0 bo’lsa, x^-2+x^-4 ni qiymatinitoping?
A) 0.2 B) 1 C) 0.04 D) 5
4. _{ } tengsizlikning butun yechimlar yig’indisini toping?
A) 21 B) 20 C) 12 D) 18
5. ABCD kvadratning AB tomonidan E nuqta olingan. Bunda AE=2 va CE=10 bo’lsa BE kesma uzunligini toping?
A) 8 B) 4 C) 5 D) 6
6. Temirning 72%i kesib olindi, qolgan qismining og’irligi 53,9 kg bo’lsa, temirning kesib
olingan qismini og’irligini toping(kg).
A) 138,6 B) 192,5 C) 161,7 D) 150
7. _{ } kasrning maxrajini irratsionallikdan qutqaring?
A) _{ } B) _{ }
C) _{ } D) _{ }
8. To’g’ri burchakli trapetsiyaning yon tomonlari 6 va 12 ga teng. Agar trapetsiyaning kichik
dioganali katta yon tomoniga teng bo’lsa, trapetsiyaning o’rta chizig’ini toping.
A) _{ } B) _{ } C) 9 D) 12
9. sina=x va 1+cosa=y bo’lsa, x va y o’zaro qanday bog’langan?
A) (x-1)²+(y-1)²=1 B) x²+(y-1)²=1
C) (x+11)²+y²=1 D) x²+(y+1)²=1
10. x³-2x²+mx+n ko‘phad x²-x-2 ga qoldiqsiz bo‘linsa, m·n ni toping.
A) –1 B) –2 C) 1 D) 2
11. k ning qanday qiymatlarida _{ } tenglama manfiy yechimga ega?
A) k_{ } B) k<3 C) k>-5; k<3 D) k<3; k>5
12. _{ } tenglamaning haqiqiy ildizlarini toping?
A) _{ } B) _{ } C) _{ };_{ } D) 3;4
13. 8cos_{ }cos_{ }cos_{ }cos_{ } ifodaning qiymatini toping?
A) 0.58 B) 1 C) 2 D) 0.5
14. Tengsizlikni yeching: (x²+2x+5)(x²+2x+1)<32
A) (-3;1) B) (-1;3) C) (-_{ };-3)_{ }(1;+_{ }) D) (-_{ };-1)_{ }(3;+_{ })
15. [x²]=9 tenglamani yeching?
A) (-_{ } B) _{ } C) _{ } D) _{ }
16. 2xy-x-2y=2 tengamaning butun yechimlari juftligi nechta?
A) 1 B) 4 C) 2 D) 3
17. Aziz yonidagi pulning 1/3 qismiga kitob, qolgan pulning 3/4 qismiga daftar sotib oldi. Shundan so‘ng hisoblab qarasa, yonida qolgan pul kitob sotib olish uchun ishlatilgan pulning 40 foizidan 120 so‘m ko‘p ekan. Aziz daftar sotib olish uchun qancha pul ishlatgan?
A) 1800 so‘m B) 1200 so‘m C) 2400 so‘m D) 600 so‘m
18. P(x)=(3x-1)²⁰¹⁷·(2x-1)²⁰¹⁶+(4x-3)²·(6x-5)²+2 ko’phad koeffitsientlarining yig’indisini toping?
A) 2²⁰¹⁷+1 B) 16 C) 9 D) 2²⁰¹⁷+3
19. ABC o’tkir burchakli uchburchakda sinA= _{ } va sinB= _{ } bo’lsa, sinC ning qiymatini toping?
A) _{ } B) _{ } C) _{ } D) _{ }
20. Tenglamani yeching: _{ }. A) _{ } B) _{ } C) _{ } D) _{ }
21. Aylana tashqarisidagi nuqtadan aylanaga kesuvchi o‘tkazilgan. Berilgan nuqtadan
aylanani kesgan nuqtalarigacha bo‘lgan masofalar mos ravishda 9 va 45 ga teng
bo‘lsa, shu nuqtadan aylanaga o‘tkazilgan urinmaning urinish nuqtasigacha bo‘lgan masofa uzunligini toping.
A) 8_{ } B) _{ } C) 6_{ } D) 9_{ }