2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 110

1. Ordinatasi y₀=-2 bo'lgan nuqtada y=1-4x+x² egri chiziqda urinuvchi to’g'ri chiziq tenglamasini ko’rsating.

A) y=2x B) y=2x va y=8-2x C) y=8-2x D) y=-2x va y=2x-8

2. ni hisoblang.

A ) B) C) D)

3. tenglamaning katta ildizini toping.

A) 1 B ) -3 C) 3 D) -4

4. Balandligi 4 sm , asosi 16 sm bo’lgan teng yonli uchburchakka tashqi chizilgan aylana 19 radiusini toping.

A ) 8 B ) 10 C)11 D)9

5. tenglikni qanoatlantiradigan a,b,c larni toping.

A) a=2/3 b=-1/3 c=1/3 B) a=b=c=1/3 C) a=1/3 b=2/3 c=-1/3 D) a=1/3 b=-1/3 c=2/3

6. Muntazam oitiburchakning tomoni √108 sm bo'lsa, unga tashqi va ichki chizilgan aylana radiuslarining nisbatini toping.

A) B) C) D)

7. tengsizlikning [0 ;π] kesmada nechta ildizi bor?

A) 5 ta B)3ta C )4 ta D) 1 ta

8. Bir burchagi qavariq , qolgan burchaklari botiq bolgan beshburchakning ichki burchaklari yigindisini toping.

A) 540° B) 720° C)450° D)960°

9. Konus o’q kesiminig perimetri 72 ga, uning balandligi 24 gateng. Uning hajmini toping.

A) 960π B ) 7200π C)400π D) 800π

10. tengsizlikni yeching

A) B) (0,1;10) C) (-1/2;0) D) (1;10)

11. tengsizlikni yeching.

A) [0; 1,6] va [2; 5] B) [0; 1,6]va [2,5; ∞] C) [ 0 ; 1, 6] D) (0; 1,6)

12. tenglamaning yechimlari to'plamini toping.

A) {5} B){3;10} C) (5;10 D) {5;-3}

13.Qo’shni burchaklardan biri ikkinchisidan 40° kichik bo'lsa, katta burchakni toping.

A) 80° B) 70° C) 100 ° B) 110°

14. Taqqoslang: a=30¹³ va b=17¹³+13¹³

A)a=b B)ab

15. B (— 4: 2) nuqtadan Ox o'qiga

perpendikulyar tushirilgan. Shu perpendikulyar asosining koordinatalari topilsin.

A)(-4;2) B) (-4; 0) C) (4; 0) D )(0;2)

16 Aylananing A, B va C nuqtalari uchun 15:4:5 nisbatda yoylarga bo’ladi. A, B,va C nuqtalardan urinmalar o’tkazilib, bir-biri bilan kesushguncha davom ettirildi. Hosil bo’lgan uchburchakning burchaklarini toping.

A) 45°, 125°. 10° B ) 105°,30°,45°

C) 30°,30°, 120° D) 60°,45°,75°

17. ctg55° ctg45° tg35° ni hisoblang.

A) 2 B) 1 C) 0,5 D) 1

18. 1+cos²x=sin³x+cos³x tenglama oraliqda nechta ildizga ega?

A)-2 ta B ) 4 ta C) 3 ta D) 1 ta

19. ni qisqartinng.

A ) B) 1+ C) D)

20. Rasmga ko'ra

A) 40° B) 80° C) 50° D) 70°

21.