2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 107
1. bo’lsa, a ning qiymatini toping.
A) 10 B ) 30 C) 6 D ) 15
2. Aylananing markaziy burchagi 60°, u tiralgan yoy uzunligi 10 sm bo'lsa, aylananing radiusini (sm) toping.
A) B ) C) D)
3 . x va y sonlar ayirmasining uchlanganini yozing va shu ifodaning x=-0,37, y=-0,42 bo'lgandagi son qiymatini toping.
A) 0,12 B)0 ,I5 C)-0,15 D) -0,79
4. ((+29)-(-1)):(+8)-(-2)) ni hisoblang.
A) -3 B ) 3 C) 28/6 D) -5
5 . soni ga ortgan bo'lsa, necha marta ko’paygan?
A ) B ) C) D)
6^. ni hisoblang
A)9 B ) 9 C) 18 D) 27
7. 144∙49 ko’pavtmaning natural bo'luvchilari yig'indisini toping.
A) 22981 B ) 19871 C) 28302 D) 22971
8 . Teng yonli trapetsiyaning diagonallari o'zaro perpendikulyar hamda yuzi 32 ga teng bo'lsa, uning diagonali uzunligini toping.
A) 8 B) 4 C) 6 D)4√2
9. Tenglamani yeching: 4sinxcosx=-1
A) B ) C ) D)
10. f’(x)-?
A) B ) C ) D)
11. Ikkita qo’shni yoqlarning markazlari orasidagi masofa ga teng bo’lgan kubga tashqi chizilgan shar sirtining yuzini toping.
A) 144π B) 125 π C) 108 π D)120 π
12. (-3; 4) nuqtasining absissasi, ordinate o'qlariga va koordinata boshiga simmetrik bo’lgan nuqtalarni tutashtirishdan hosil bo’lgan uchburchakning eng kata tomonini toping.
A) 14 B) 12 C)10 D) 24
13. tenglamani yeching.
A) 3 B ) √2 - 1 C) 1 D) ∅
14. Muntazam uchburchak ichidan olingan nuqtadan uchburchak tomonlarigacha bo'lgan masofalar mos holda . vektorlarning absalyut qiymatlarga teng bo'lsa, uchburchak balandligini toping.
A) 16 B )18 C) D )
15. Agar geometrik progressiyada b₁=-3 va b_n=- 192 S_n=-381 bo’lsa, n ni toping.
A) 11 B ) 5 C )9 D) 7
16. ni soddalashtiring.
A) 3x-2 B)1-x C) x+2 D)
1 7. XOY tekisligida markazi (2;3) nuqtaga bo’lgan aylana rasmdagidek chizilgan. Aylanani O Y o’qi A va B nuqtalarga kesib o’tadi. Shulardan A nuqtaning ordinatasi topilsin.

A) B) C) D)

18. tg2x-ctgx= 0 tenglamani yeching.

A) B ) C ) D)
19. Agar bo ‘lIsa. ni toping
A) B) C) D)
20. Agar f(a,b,c ) = -a/(b-s) bo'lsa, f(f(1,2,3), f(2,31), f(3,1,2)) ni toping.
A ) -1/2 B 0 C )1 D ) – ¼)
21. A(2;-5) nuqtadan o’tuvchi va parabolaga urinuvchi to’g'ri chiziqning urinish nuqtasi assissalari ko'paytmasini toping.
A) 2 B) -2 C)-4 D) 4
22. 1,16(6)+0,12(3) ni hisoblang.
A) B) C) D) 19
23. Agar bo‘lsa, ni toping. (r∈R)
A ) 2786 B ) 2794 C) 8 D) 27
24. tenglamani yeching.
A) B) 3 C) D)
25. Muntazam oitiburchakning tomoni √108 sm bo'lsa, unga tashqi va ichki chizilgan aylana radiuslarining nisbatini toping.
A) B) C) D)
26. 3,1,1/3, … geometrik progressiyaning oltinchi va ettinchi hadlarini toping.
A) B) C) D)1,3
27. |7-6x|=|8x-7| tenglamani yeching.
A) {0;2} B) {2;1} C) {0;1} D) {2;3}
28. kasrni irratsionallikdan qutqaring.
A) 1 B) C) D)
29. tenglama [-2π;2π] kesmaga nechta ildizga ega?
A) ∅ B) 1 C) 3 D) 2
30. ni hisoblang.
A) -1 B ) 2014 C) D)
31. Ikkiiikda aks etgan quyidagi axborot necha bayt? 1011101000111010
A) 8 B )16 C) 4 D) 2
32. 2 ta mushuk 2 soatda 2 ta sichqonni yeydi. 4 ta mushuk 4 soatda nechta sichqonni yeydi?
A) 3 B ) 6 C)2 D) 4
33. Windows operatsion tizim (sistema)da papka va hujjatlami vertikal ustun shaklida va har bir ob’yeklar uchun qo’shimcha ma’lumot bilan tartiblash usuli qaysi javobda to’g’ri ko'rsatilgan?
A) Значок B ) Плитка C) Список D) Таблица
34. Protsessoming aniq kompyuterning tashqi qurilmasi bilan aloqasini ta’minlovchi dastur bu ...
A) sistema B ) antivirus C) internet D) drayver
35. Faqat brauzerlar berilgan qatomi ko’rsating.
A) Netscape Navigator, Internet Explorer
B) MySQL, Internet Explorer
C) AutoCAD, Internet Explorer
D) Mozilla, MySQL
36. Paskal tilining quyidagi takrorlash operatoridagi takrorlanishlar sonini aniqling:
For i:=-17 downto -1 do write('talaba’);
A) 19 B ) 0 C)1 D) 17