2015-yilning variantlari Matematika (Informatika) javoblari bilan

Variant №130
1. f ( x ) = sin e^-x bo'lsa, ni toping.
A) 1/2 B ) C) D)
2. D(-1;0), C(0;-1). B)(1;0). A(0;1) nuqtalardan hosil bo’lgan ABCD to'rtburchak simmetriya nuqtasi koordinatalarini toping.
A)(0;-1) B)(1;1) C) (-1 ;-1) D)(0;0)
3. funksiyaning hosilasini toping.
A) 1 B ) 2sinx C) 0 D) 2cosx
4. Tenglamani yeching:
A) 3 B ) 5 C) 1 D) 2
5. Aniq integralni hisoblang:
A ) – 3/8 B)2 C) – ½ D) 3/2
6. 18 dan kichik natural sonlar ichidan eng ko’p natural bo’luvchiga ega bo’lganini toping.
A) 15 B ) 14 C) 16 D) 12
7. To'g'ri burchakli uchburchakning katetlari o'zaro 3:4 nisbatda, gipotenuzasi 15 sm ga teng. Shu uchburchakning kichik katetini toping.
A) 20 B) 15 C )9 D) 10
8. Uchburchakning tomonlari 15, 14, 13 bo'lsa, uchburchakka ichki chizilgan aylana radiusini toping.
A) 4 B)3 C )7 D) 2
9. Zarracha har minutda ikkiga ajraladi. Agar idishga 1 ta zarracha solinsa. u 1 soatda toladi. Shu idishda 2 ta zarracha solinsa, u qancha minutda to’ladi?
A ) 59 B)49 C)45 D)30
10. ni soddalashtiring
A)a B) 2 C) D)1
11. ni qisqartrrmg.
A) B) x¹¹ - 1 C ) D)
12. ko’paytmaning natural bo’luvchilari sonini toping.
A) 54 B ) 108 C)216 D) 106
13. Muntazam parallelepipcdning balandligi asosining tomonidan marta katta. Parallelepipedning diagonali asos tekisligi bilan qanday burchak tashkil etadi
A) B ) 60° C) 30° D)
14. Arifmetik progressiyada a₁₁ +a₇=6 ga teng, toping.
A ) 2 B ) 3 C) 1 D)7
15. ABC to'g’ri burchakli uchburchakning katetlari diametri qilib yuzlari va bo’lgan yarim doiralar chizilgan bo'lsa,gipotenuzaning uzunligini toping.
A) 22 B ) 10 C)20 D ) 15
16. ni hisoblang.
A) 8 B ) 9 C) 0 D)
17. a ning qanday qiymatida tenglamalar sistemasi yechimga ega?
A) 3 B) 2 C )0 D) 1

18. Kasrni qisqartiring

A) B) C) D)
19. Teng yonli uchburchakning uchidagi burchagi a ga teng. Uchburchakka ichki va tashqi chizilgan doiralar radiuslari nisbatini toping.
A) B) C) D)
20. bo’lsa, a ning qiymatini toping.
A) 30 B) 6 C)10 D) 15
+ 1 ylx-3 + >Ix + 3
21. tenglamaning yechimlari to'plamini toping.
A) {3:10} B) {5; 10} C){5;-3} D) {5}
22. ifodaning qiymatini toping.
A) 3 B) 4 C) 1 D) 2
2 3. Rasmada ifodalanganidek OD va CE kesmalar AB diametrgi perpendikulyar bo’lib, AO=2CE bo’lsa, S_ACB :S_ADB nisbatini toping.
A ) 1:4 B ) 1:2 C) 3:2 D) 2:1

24. tenglama [- 2π; 2 π] kesmada nechta ildizga ega?

A) ∅ B) 1 C) 2 D )3
25. ctg55° • ctg45° • tg35° ni hisoblang.
A) 2 B ) 0,5 C )0 D) 1
26. F(x)-?
A) B) C) D)
27. hisoblang.
A) 17/13 B) 13/17 C) 19/13 D) 13/15
28. |2-x|+3x<5 tengsizlikni yeching.
A) x≥3 B ) x≤-1 C) x≥2 D) x≤ 3/2
29. ni hisoblang.
A) 980 B ) 825 C) 1 D) 625
30. To'g'ri burchakli uchburchakda bir burchagi 60° ga teng,kichik tomoni esa 3√3 bo'lsa,uchburchakning perimetrini toping
A)3√3+5 B) 11√3 C) 2√3+3√3 D)9(√3+1)
31.1000 Kbayt axborot necha bitga teng
A) 10² ∙2¹³ B ) 20³ ∙2¹⁰ C) 20³ ∙2⁹ D) 20² ∙2¹⁰
32. MS Excel 2003 dasturida berilgan =Если(Степен(3:4)>81; Сцепить(“ avto” :’'bus” ); MAKS (15;30;4)) formulani natijasini aniqlang.
A) 81 B)AVTOBUS С)30 D) avtobus
33. Kompyutcrga dasturiy ta’minotini o’rnatish jarayoni ... deyiladi.
A) arxivlash B ) defragmentatsiya C) deinstallyatsiya D) installyatsiya
34. MS Exsel 2003 dasturida AI katakda 8, A2 katakda 7, A3 katakda 6ni qiymati berilgan bo’lsa, = ПРОИЗВЕД(A1:A3) formula bo’yicha A4 katakda qanday natija hosil bo’lgan.
A) 335 B) 48 C ) 338 D ) 336
35. HTML- hujjatda matnni qalin shirift ko’rinishda yozish uchun uni qaysi HTML teglar orasida olish zarur?
A)... B) ... C) ... D)
...

36. Paskal tilida quyidagi dastur bajarilishi natijasida ekranga chiqariladigan axborotlarni aniqlang: Var k, b:integer; c:string; Begin K:=4; B:=5; C:=” 21” ; If k>b then write ("C=” ,C: 1) else write C'C=” ,C: 1); end.

A) C=2 B) C=212 C) C=21 D) C=212