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test matematika fanida akademik litse

20- variant

1. A={2;3;4;5;6;7;8}, B={5;6;7;8;9;10} to’plamlarning kesishmasi bo’lgan C to’plamni toping.


A) C= {2;3;4;5;6;7;8;9;10} B) C={5;6;7;8}
C) C={2;3;4} D) C={9;10}
2. Dizyunksiya lotincha “disyunctio”so’zidan olingan bo’lib … ma`noni bildiradi.
A) Bog`layapman B) Kelib chiqish C) Farqlayapman D) Teng kuchli
3. Hisoblang.
A) B) 11 C) D)
4. Agar p>q>k>0 bo`lsa, |p+q|-|k-q|+|k-p| ni soddalashtiring.
A) 2p+2q+2k B) 2p+2q-2k C) 2p+2k D) 2p
5. x4-3x2+1 ko’phadni x-2 ikkihadga bo`lgandagi qoldiqni toping:
A) 2x B) -5 C) 5 D) 4
6. Amallarni bajaring: (3+2i)2 -(3-2i)
A) 2+14i B) 2-14i C) -2-14i D) -2+14i
7. Tenglamani yeching:x3-5x2=x-5
A) -5 va -1 B) 5 va ±1. C) 5 va -1 D) ±5 va ±1
8. Tenglamani yeching:
A) - va 3 B) 3 C) - D) -3 va
9. Tengsizlikni yeching: x(2x2+1)(x-2)>0
A) (-∞; 0) (2; ∞) B) (0;4) C) (-∞;-4) (4; ∞) D) (0;∞)
10.Tengsizlikni yeching: >0
A) (-1; -5) B) (1;5) C) Ø D) (-∞;∞)
11. Funksiyaning qiymatlar sohasini toping: y=-5+3cosx
A) [2;8] B) [-2;8] C) [-8;2] D) [-8;-2]
12. Hisoblang:
A) B) - C) - D) -1
13. Tenglamani yeching. cos4x=
A) B) C) (-1)k D)
14. Tengsizlikni yeching. sinx<-
A) - B)
C) - D) -
15. Ko`rsatkichli tenglamani yeching: 16x-17·4x+16=0
A) -2 va 0 B) 0 va 1 C) 0 va 2 D) 1 va 3
16. Ko`rsatkichli tengsizlikni yeching: 52x+1 > 5x+4
A) (1; ∞ ) B) (0; ∞) C) (-∞; 0) D) (-∞; -1)
17. y = lg (x-3) +lg(x+3) funksiyaning aniqlanish sohasini toping:
A) (-∞;-3) B) (∞;3) C) (3;∞) D) (0;3)
18. Tengsizlikni yeching. log4(x+1)≤log4(5-x)
A) (-1;5) B) [2;∞) C) (-1;2) (2;5) D) (-∞;2]
19. Tenglamani yeching. log3(5x-1)=2
A) 1 B) 9 C) 2 D) 0
20. Hisoblang:
A) 6826 B) 1 C) 6825 D) 6425
21. Fazoda nuqtadan tekislikka ikkiita og`ma o`tkazilgan. Og`malarning tekislikdagi proyeksiyalari 5 va 3,5 ga teng. Agar nuqtadan tekislikkacha bo`lgan masofa 12 bo`lsa, bu og`malarning uzunliklari farqini toping.
A) 1 B) 0,5 C) 0,25 D) 13
22. Doiraning yuzini 96 % ga orttirish uchun uning radiusini necha % ga orttirish kerak?
A) 20 B) 35 C) 40 D) 15
23. A(0;y;0) nuqta B (1;2;3) va C (-1; 3;4) nuqtalardan teng uzoqlikdaligi ma`lum bo`lsa, y ni toping.
A) 6 B) -5 C) 5 D) -6
24. n ning qanday qiymatlarida berilgan vektorlar perpendikulyar bo’ladi:
(2;-1;3) va (1;3;n)
A) B) C) D)
25. Agar to`rtburchakli muntazam piramidaning balandligi 6 dm,apofemasi 6,5 dm bo`lsa, asosining perimetrini toping.
A) 24 B) 16 C) 20 D) 28

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