1. n ( n n ) ning kasr butun son bo’ladigan barcha qiymatlarini toping

115 Variant

_{4 2}

1. n ( n N ) ning kasr butun son bo’ladigan barcha qiymatlarini toping
A) 1; 2 B) 1 C)1;2;4 D)2
2. ning qiymatini toping

A) B) C) 0,2 D) 2

3. ni hisoblang
A) 6 B) 2 C) 4 D) 3
_{2 2}
4. 2a b+ 3a- 4ab - 6b ko’phadni ko’paytuvchilaga ajrating

A) ( a-2b)( 2ab+3) B) (2ab-3)( a-5b) C) ( 2a +b)( b-5a) D) ( 3+ 2ab)( a-5b)

5. 
   m ning qanday qiymatlarida (m -1)y +1 = m tenglama yechimga ega bo’lmaydi
   

A) m=0 B) m=1 C) m=2 D) m= -1

6. tenglamaning nechta haqiqiy ildizi bor

A) 2 B) 3 C) ildizi yo’q D) 1

7.

A) ( B) ( C) (-3;2) D) (

8.0,4(5) soni quyidagi sonlardan qaysi biriga teng

A) B) C) D)

9. tengsizlikni yeching

^{A) ( ;1) B) ( 0; ) C) ( D) (0;1)}
10.Qo’shni burchaklardan biri ikkinchisidan besh marta kichik bo’lsa ,shu burchakladan katasini toping
A) 130⁰ B) 150⁰ C) 144⁰ D) 140⁰
11. Quyidagi tasdiqlarning qaysilari noto’g’ri ?
1)tomonlari a va b ga, ular orasidagi burchaklaridan biri ga teng bo’lgan parallelogramning yuzi S= absin formula bilan hisoblanadi;
2) tomonlari a va b ga , ular orasidagi burchagi ga teng bo’lgan uchburchakning yuzi S= absin formula bilan hisoblanadi
3) o’xshash figuralar yuzlarining nisbati ularning mos chiziqli o’lchovlarining nisbatiga teng .
A) 2;3 B)1;2 C)1;2;3 D) 1;3
12. Tekislikka og’ma va perpendikulyar tushurilgan. Og’maning tekislikdagi proyeksiyasi 45 ga, pependikulyarning uzunligi 28 ga teng. Og’ma va perpendikulyar orasidagi burchakni toping.
A) arccos B) arcsin C) arcsin D) arctg
2
13. A gar cos2 = bo’lsa sin ni hisoblang.
A) B) C) D)
14. 43*15*25*37+34*48*77 yig’indining oxirgi raqamini toping.
A) 9 B) 4 C) 5 D) 0
15. 18 va 8 sonlari eng kichik umumiy karralisining natural bo’luvhilari nechta.
A) 7 B)12 C)9 D) 8
16. y=4-2sinx funksiyaning [0; ] kesmadagi eng kichik qiymatini toping.
A) 2 B)3 C)1 D)2-
17. x ning qanday qiymatlarida y= funksiyaning qiymatlari 3 dan kkichhik emas.
A) (-2;5] B) (- ;-2) [5; ) C)(- ;-2) D)[5; )
18. sin4xdx ni hisoblang.
A)0.25 B) -0.25 C) 0.375 D) 0.5
19. log 3x -5log3x +6=0 tenglamaning ildizlari yig’indisini toping.
A) 27 B)36 C)18 D)12
20. Aylananing 13 ga teng vatari 90 li yoyni tortib turadi.Aylananing uzunligini toping.
A) 20 B)24 C)26 D) 22
21. Balandligi 32 ga teng teng bo’lgan rombga ichki chizilgan doiraning yuzuni toping.
A) 190 B)196 C)200 D)256
22. Chiziqli o’lchovlari 3,4 va2 sm bo’lgan o’g’ri burchakli parallelpipedning diagonali necha sm?
A)7 B)11 C)9 D)10
23. Radiusi 8 ga teng bo’lgan sharga balandligi 18 ga eng bo’lgan konus tashqi chizilgan. Konus asosining radiusini toping.
^{A) 18 B) 12 C)16 D)24}
24. hisoblang.
A) B) 0 C) D)
25. 2sin²x-1= tenglamani eching.
A) B)
C) D)
26. ishchining mehnat unumdorligi 30% ortsa, uning ish normasini bajarishga ketadigan vaqti necha foizga qisqaradi?
A)25 B)20 C) D)
27. funksiyaning qiymatlar to’plamiga tegishli tub sonlar nechta?
A)1 B)4 C)3 D)2
28. To’rtta sonning yig’indisi 118 ga teng. Agar birinchi va ikkinchi sonning nisbati 2:3 kabi, ikkinchi va uchinchi sonning nisbati 3:5 kabi va uchinchi va to’rtinchi sonning nisbati 5:6 kabi bo’lsa, birinchi vato’rtinchi sonning yig’indisini toping.
A) 62 B) 60 C)59 D)66
29. 5x²+bx-15=0 tenglamaning ildizlari x₁ va x₂ uchun 5x₁₊2x₂ =1 munosabat o’rinli. Agar b butun son ekanligi ma’lum bo’lsa, uning qiymatini toping.
A) -10 B) 7 va -10 C) 10 D) -7 va 10
30. Katetlarning nisbati 2:3 bo’lgan to’g’ri burchakli uchburchak balandligi gipotenuzasini uzunliklaridan biri ikkinchisidan 0,6 ga kam bo’lgan bo’laklarga ajratadi. Gipotenuzaning bo’laklarini toping.
A) 5 va 3 B) 2 va 4 C) 1,6 va 3,6 D) 1,08 va 0,48
31. teng yonli trapetsiyaning kichik asosi 3 ga, perimetri 72 ga teng. Uning diagonali o’tma sburchagini teng ikkiga bo’ladi. Trapetsiyaning o’rta chizig’ini toping.
A) 8,5 B) 13 C) 7,5 D)12
32. vector (2;4;4) vektorga collinear hamda bu vektorlarning skalyar ko’paytmasi 144 ga teng. vektorning uzunligini toping.
A)16 B)24 C)18 D)12
33. tengsizlik x( ) ning qanday qiymatlarida o’rinli?
A) B) C) D)
34. x^lg9+9^lgx=6 tenglamani eching.
A) 10 B) 1 C) 2 D)
35. Doiraga ichki chizilgan muntazam uchburchakning yuzi unga ichki chizilgan kvadratning yuzidan 18,5 ga kam. Shu doiraga ichki chizilgan muntazam oltiburchakning yuzini toping.
A) B) C) D)
36. Asosi a ga, asosidagi burchagi gat eng bo’lgan tengyonli uchburchakni yon tomoni atrofida aylantirishdan hosil bo’lgan jismning hajmini toping.
A) B) C) D)