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11-sinf Matematika 4-chorak

InfoMaster

Aprel 20, 2021

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11-sinf Matematika 4-chorak

Testni Salomov Sardor tayyorladi.

1 / 25

Tandirdan olingan nonning temperaturasi 20 minut ichida 100⁰ dan 60⁰ gacha pasayadi. Tashqi muhit temperaturasi 25⁰. Nonning temperaturasi qancha vaqtda 30⁰ gacha pasayadi?

A) 71

B) 51

C) 41

D) 61

2 / 25

To’g’riburchakli parallelepiped asosining tomonlari 7:24 nisbatda, diagonal kesimining yuzi 50dm² ga teng. Yon sirtining yuzini toping.

A) 135 dm²

B) 224 dm²

C) 124 dm

D) 124 dm²

3 / 25

Kub to’la sirtining yuzi 105,84 sm² bo’lsa, uning har bir yog’i yuzini va qirrasining uzunligini toping.

A) 17,64 dm; 4,2 dm

B) 17,64 dm²; 4,2 dm

C) 17,68 dm²; 4,2 dm

D) 17,64 dm²; 4,9 dm

4 / 25

f(x)=e^xcosx funksiyasi uchun f ’(π/2) ni aniqlang.

A. e^-0.5π B. e^0,5π C. e^π D. e^-π

A) e^(-0.5π)

B) e^(-π)

C) e^(π)

D) e^(0.5π)

5 / 25

Qavariq ko’pburchakning har bir uchidan uchtadan qirra chiqadi. Agar bu ko’pyoqning qirralari soni 12 ta bo’lsa, uning nechta uchi va yog’i mavjud?

A) 8;10

B) 4;18

C) 4;11

D) 4;10

6 / 25

To’g’ri to’rtburchak shaklidagi yer maydoninig atrofini o’rashmoqchi. 480 m panjara yordamida eng ko’pi bilan necha kvadrat metr yer maydonni o’rash mumkin?

A) 14400

B) 25600

C) 19600

D) 8100

7 / 25

Trapetsiyaning kichik asosi 6 ga va yon tomoni 5 va 7 ga teng. Uning kata asosi ham butun son bo’lsa, perimetri eng ko’pi bilan nechaga teng bo’lishi mumkin

A) 1

B) 4

C) 3√2

D) 3

8 / 25

Uchlari soni 14 ta, qirralari soni esa 21 ta bo’lgan ko’pyoqning yoqlari sonini toping.

A) 9

B) 8

C) 16

D) 4

9 / 25

aniq integralni hisoblang

A) 6

B) 2

C) 4

D) 2,5

10 / 25

sin3x+ $\sqrt{3}$ cos3x≥0 tengsizligini yeching

A) [-π/9+n π/3;2 π/9+n π/3]

B) ø

C) (-π/2+n π;- π/2+n π)

D) [-π/9+2πn/3; 2π/9+2πn/3]

11 / 25

cos15⁰*cos45⁰ *cos75⁰ ni hisoblang

A) 2√2

B) √2/2

C) √2

D) √8/2

12 / 25

$f(x)=x^3+2x^2+x+3$ funksiyasining kamayish oralig’ini toping.

A) [-1;-1/3]

B) (-∞;-1)

C) (-1;1/3)

D) (-1/3;+∞)

13 / 25

Funksiyaning statsionar nuqtalarini toping $f(x)=2x^3-3x^2-12x+3$

A) x=-1, x=3

B) x=3, x=2

C) x=-1, x=2

D) x=0, x=2

14 / 25

funksiyaning [-4;2] oraliqdagi eng katta qiymatini toping $f(x)=x^3+4.5x^2-9$

A) 14

B) 16

C) 18

D) 17

15 / 25

Uchlari A(2;-3;4) va B(-2;4;5) nuqtalarda bo’lgan AB kesmasining uzunligini toping

A) √19

B) √66

C) √55

D) √24

16 / 25

Murakkab funksiyaning hosilasini toping. y=x²sinx

A) y’=x²cosx-2xsinx

B) y’=-2xsinx+x²

C) y’=2xsinx-x²

D) y’=2xsinx+x²cosx

17 / 25

Funksiyaning kamayish oraliqlarini toping

A) (-2;0) va (0;1)

B) (-1;0) va (0;1)

C) (-3;0) va (0;1)

D) (-1;0) va (0;2)

18 / 25

Agar A(1;2;3), B(3;7;6) bo’lsa, A̅B̅ vector koordinatalarini toping

A) (2;5;3)

B) (4;9;9)

C) (4;9;9)

D) (-2;-5;-3)

19 / 25

Moddiy nuqtaning berilgan t vaqtdagi tezligini hisoblang: $s(t)=t^3-2t^2+t$ , t=5

A) 80

B) 75

C) 90

D) 70

20 / 25

Nargiza 4minutda 260ta so`zni terib, 7ta imloviy xatoga yo`l qo`ydi. Nargizaning matn terish sifatini aniqlang

A) 0,6

B) 0,0269

C) 0,01

D) 0,5

21 / 25

A) 20

B) 18

C) 14

D) 13

22 / 25

f(x)=(sinx)^cosx bo’lsa, f '(5π/6) ni toping

A) (ln2+3)/2)*(√2^√3)

B) (ln2+3)/2)*(√2^√2)

C) (ln2+3)/2)*(√3^√3)

D) (ln2-3)/2)*(√2^√3)

23 / 25

Bir burchagi 60⁰ bo’lgan to’g’ri burchakli uchburchakka tomoni 6 ga teng romb shunday ichki chizilganki, 60⁰ li burchak ular uchun umumiy, rombning barcha uchlari uchburchakning tomonlarida yotadi. Uchburchak yuzini toping

A) (1√3)/2

B) (8√3)/2

C) (81√3)/2

D) √3/2

24 / 25

y=x²-│2x-4│ funksiya grafigiga x=3 va

x= -3 nuqtalarda o’tkazilgan urinmalar kesishish nuqtasi ordinatasini toping

A) -5

B) -12

C) -6

D) -9

25 / 25