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.