Tenglamani qanoatlantiruvchi yechimlar nechta? A b c d 3

Test-1
1. Tenglamani qanoatlantiruvchi yechimlar nechta?

A)0 B)1 C)2 D)3
2. x quyidagilardan qaysi biriga teng.
+ +=x
A) B) C) D)
3. 2^f(x)=10-x berilgan bo’lsa
f(2)+f(-6) ni toping.
A)7 B)8 C)9 D)10
4. Yigirmata mashina 20 kunda 20 tonna benzin ishlatsa, o’nta mashina 10 kunda necha tonna benzin ishlatadi?
A)5 B)10 C)15 D)20
5. f(x)=2x³-x²+3x+1 berilgan bo’lsa
x⁴ f( ) ifodaning qiymati quyidagilardan qaysi biriga teng.
A) x⁴+3x³-x²+2 B) x⁴+3x³-x+1
C) x⁴+3x³+x²-x D) x⁴+3x³-x²+x
6. Ifodani ko’paytuvchilarga ajrating.
px²-txy-p²tx+t²py
A)(p-tx)(x-py) B)(xy-p)(tx-p)
C)(px-ty)(x+pt) D)(px-ty)(x-pt)
7.
A)6 B)13 C)14 D)5
8. Ifodadan a+b ni qiymatini toping.

A)10 B)12 C)14 D)16
9. Soddalashtiring.

A)x-y B) x C)x+y D)xy
10. Hisoblang.

A)6 B)10 C)8 D)12
11. Katetlari 3-2 x+x²=0 tenglama ildizlariga teng bo’lgan to’g’ri burchakli uchburchakning yuzini toping.
A)1,5 B)2 C)4 D)5
12. Uchburchak medianalari kvadratlari yig’indisininig tomonlari kvadratlari yig’indisiga nisbatini toping.
A) B) C) D)
13. x³-32-4x =0 tenglamaning ildizlari ko’paytmasini toping.
A)1 B)2 C)3 D)4
14. ctg55 ctg45 ctg35 ni hisobang.
A)0 B)0,5 C)1 D)2
15. a=2^x ga teng bo’lsa ni a orqali ifodalang.
A)2^a B)2^4a C) ^a D)16a²
16. (x⁴-3x³+2x-1)(x²-4x-2) ifodaning x³ oldidagi hading koeffitsentini toping.
A)7 B)8 C)6 D)4
17. ABCD to’g’ri burchakli trapetsiyada ,
∠ C=120 va |DC|=2 ga teng bo’lsa trapetsiyaning yuzini hisoblang.
A) B) C) D)2
18. P(x+2)=x²-7x+2 ko’phad berilgan bo’lsa P(x) ni x-5 ga bo’lgandagi qoldiqni toping.
A)-10 B)-4 C)-6 D)-8
1 9. ABCD kvadratda EF=FC , DE=2 va EC=4 ga teng bo’lsa FCB ning yuzini hisoblang.
A) B)3 C)2 D)6
20. Agar geometrik progressiyada b₁=-3, b_n=-192 va S_n=-381 bo’lsa n ni toping.
A)5 B)7 C)9 D)11
21. Hisoblang.
+5tg20
A)5 B)6 C)4 D)2,5
22. A= va B=cos6 ga teng bo’lsa 2AB quyidagilardan qaysi biriga teng.
A)cos80 B)cos79
C )cos78 D)cos77
23.
Yuqorida y=2sin4x ning grafigi berilgan bo’lsa ABC uchburchakning yuzini hisoblang.
A) B) C) D)
24. x>0 va g(x)=f( ),
f(1)=f ’(1)=4 va f ’( )=8 ga teng bo’lsa g’(1) ni toping.
A)-6 B)-3 C)-1 D)3
25. Konusning balandligi 24 ga, o’q kesimining perimetri 72 ga teng. Uning hajmini toping.
A)400 B)720 C)800 D)960
26. Ifodaning qiymatini toping(i²=-1).

A) 1 B) C) D)

27. f(x)=x³-6x²+4 funksiyaning (1, 2) oraliqdagi grafigi quyidagilardan qaysi biriga teng.

28. Integralni hisoblang.
(3-x)dx
A) 2x - x² +C
B) 2x - x² +C
C) x - +C
D) x -5 +C
2 9. Shakldagi aylanada AB=16, AE=24, DE=10 bo’lsa DC=x ni toping.
A) B)4 C)6 D)
30. log₂(sinx)+log₂(2cosx)=-1
berilgan bo’lsa, x quyidagilardan qaysi biriga teng.
A)15 B)30 C)45 D)60