Variant-a 3-5 mart

Variant-B 3-5 mart
1. ning qiymatini toping.
A) 90 B) 105 C) 100 D) 110
2. 3; y; 2,1 va 2,1 sonlarining o’rta arifmetigi 2,55 ga teng. y ni toping.
A) 2,6 B) 2,1 C) 3 D) 2
3. ni soddalashtiring.
A) 2ab B) −2ac C) 2ab−2bc D) 0
4. ni soddalashtiring.
A) x+1 B) 2x C) 0 D) x−2
5. m ning qanday qiymatlarida tenglik o’rinli bo’ladi?
A) B) C) m>3 D) m=3
6. va tenglamaning ildizlari bo’lsa, ning qiymatini toping.
A) −176 B) −120 C) 176 D) 280
7. tengsizlikni yeching.
A) B) x<4 C) x>4 D)
8. 0,6(3) ni oddiy kasrga aylantiring.
A) B) C) D)
9. ni hisoblang.
A) 9 B) C) 18 D) 3
10. Ikkita to’g’ri chiziqning kesishishidan hosil bo’lgan qo’shni burchaklar 7:8 nisbatda bo’lsa, shu burchaklarni toping.
A) B) 144 C) 38 ; 142 D) 84 ; 96
11. Quyidagi tasdiqlarning qaysilari to’g’ri?
1) tomonlari a, b va c bo’lgan uchburchakka ichki chizilgan aylananing radiusi formula bilan hisoblanadi;
2) radiusi R ga, markaziy burchagi ga teng doiraviy sektorning yuzi formula bilan hisoblanadi;
3) tomoni a ga, burchaklaridan biri ga teng rombning yuzi S= fo’rmula bilan hisoblanadi.
A) 2;3 B) 1;2 C) 1;2;3 D) 1;3
12. Twkislikka og’ma va perpendikular tushirilgan. Og’mning tekislikdagi proyeksiyasi 12 ga, perpendikularning uzunligi 35 ga teng. og’ma va perpendikular orasidagi burchakni toping.
A) arcsin B) arccos C) arctg D) arcsin
13. ni soddalashtiring.
A) 1− B) C) D)
14. Agar m>3, n>5, k<6 bo’lsa 3m+5n−2k ning eng kichik butun qiymatini toping.
A) 14 B) 23 C) 22 D) 13
15. Qaysi juftlik o’zaro tub sonlardan iborat?
A) (11;22) B) (8;14) C) (12;34) D) (39;44)
16. funksiyaning aniqlanish sohasini toping.
A) B) C) D)
17. tengsizlikni yeching.
A) (−2,5;2) B) C) (−2,5;−1,5) D)
18. ni hisoblag.
A) B) C) D)
19. a= bo’lsa, ni a orqali ifodalang.
A) B) C) D)
20. Aylanaga tashqi chizilgan teng yonli trapetsiyaning o’rta chizig’i 8 ga teng. shu trapetsiyaning yon tomonini toping.
A) 8 B) 4 C) 5 D) 7
21.
22. To’g’ri burchakli parallelepiped asosining tomonlari va balandligi qiymatlari 4;3;1,25 kabi nisbatda, parallelepipedning diagonali va tekisligi orasidagi burchagni toping.
A) B) C) arctg4 D)
23. Ikkita sfera yuzlarining nisbati 2; ga teng. Bu sferalar diametrlarning nisbatini toping.
A) B) C) D) 8
24. ni hisoblang.
A) B) 0 C) D)
25. tenglamani yeching.
A) B) C) D)
26. ishchining mehnat unumdorligi 30 ortsa, uning ish normasini bajarishga ketgan vaqti necha foizga qisqaradi?
A) 25 B) 20 C) D)
27. y= funksiyaning aniqlanish sohasoni toping.
A) (−4;4) B) (−4;1] C) (−4;−1) D) (−4;2]
28. tenglamning ildizlari qaysi oraliqqa egishli?
A) B) C) 329. tenglamaning barcha natural yechimlari yig’indisini toping.
A) 1 B) 12 C) 10 D) 15
30. To’g’ri burchagli uchburchakning katetlari 5 va 7,5 ga teng, to’g’ri burchak bissektrisasining uzunligini toping.
A) B) 4 C) D)
31. Asoslari 8 va 14 ga teng bo’lgan teng yonli trapetsiyaning diagonallari o’zaro perpendikula. Trapetsiyanig yuzini hisoblang.
A) 64 B) 100 C) 121 D) 144
32. Agar (1;−1;3) va (4;3;0) bolsa, a ning qanday qiymatida vektor vektorga perpendicular bo’ladi?
A) 2,1 B) C) D)
33. cos2x−sinx−3=0 tenglamani yechin.
A) B) C) D)
34. tengsizlikning yechimlaridan nechtasi butun sonlardan iborat?
A) 8 B) 9 C) 6 D) 7
35. Radiusi5 ga teng bo’lgan doiraga to’g’ri burchakli uchburchak ichki chizilgan. Shu uchburchakka ichki chizilgan doiraning radiusi 1 ga teng. Uchburchakning yuzini toping.
A) B)12 C) 22D) 11
36. O’q, kesimi teng tomonli uchburchakdan iborat konusga diametri D ga teng sfega ichgi chizilgan.
Konusning to’la sirtini toping.
A) B) C) D)