2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 118

1. Agar bo’lsa, ni toping.

A) 7/8 B) 8/9 C)5/9 D) 4/9

2 C(2;1 ) B)(-2;5) A(3;-1) nuqtalar berilgan. + vector bilan yo'nalishdosh va uzunligi uning 2/5 qismiga teng bo'lgan vektomi toping.

A) (1,5;-2) B)(-1,5;2) C)(-12/5;16/5) D) (12/5;16/5)

3. Yig'indini oxirgi raqamini toping

A) 3 B ) 9 C) 7 D) 11

4. sistemadan x+y ni toping.

A) 38 B ) 29 C)30 D) 25

5. 102 gacha bo'lgan 4 ta karrali natural sonlar yig'indisini toping.

A) 1100 B) 2000 C) 1300 D) 1000

6. Tenglamani yeching:

A) B) C) D)

7. Ishchining maoshi ketma-ket ikki marta 15% ga oshirilgandan keyin 793500 so'm bo’ldi. Uning dastlabki maoshi necha so’m bo'lgan.

A) 600000 B) 575000 C) 550000 D) 650000

8. x ning qanday qiymatlarida barcha y lar uchun 2x-12y+8xy-3=0 tenglik o'rinli bo'ladi?

A)3/2 yoki -1/4 B) 3/2 C) 2/3 D) -2/3 yoki -1/4

9. ni hisoblang

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

10. funksiyaning eng kichik va eng katta butun qiymatlari nisbatini toping.

A) 2/5 B ) 1/6 C ) 1/3 D ) 6

11. Agar n ta juft son va m ta toq sonlarni qo’shganda juft son chiqsa. m ning qiymati qanday bo'ladi?

A) juft B) 0 C)toq D) aniqlab bo’lmaydi

12. y=3cos2x-cos6x funksivaning hosilasini toping.

A) -12cos2xsin4x B ) 12sin2x sin4x C) 12sin2xcos4x D) 12cos2xcos4x

13. Tenglamani yeching:

A) 0 B )∅ C) –π/2 D) 1

1 4. ifodani soddalashtiring va x=64; y=31/78 dan son qivmatini toping.

A ) 16 B ) 15 C) 12 D) 18

15 Balandligi 1 sm bo’lgan uchburchakli muntazam piramida asosining tomoni 6 sm bo’lsa. uning apofemasini (sm) toping.

A) √3 B )2 C) 3 D) 1,5

16. Asoslari 8 sm va 10 sm. balandligini 4 sm bo’lgan trapetsiyada tengdosh uchburchakning asosi 4.5 sm Shu uchburchakning balandligini toping.

A)18sm B)12sm C)14 sm D)16sm

17. Tenglama nechta haqiqiy ildizga ega?

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

18. Tengsizlikni yeching:

A) ( 1 ;3] B) (1 ;5] C ) [ 1; 5 ] D )( 1;3 )

19. Tenglamani yeching:

A) 100 B ) 1000 C) 0,1 D) 1000;0,1

20. 1∙2∙3∙...∙30 ko'paytmani tub ko’paytuvchilarga ajratganda ko'paytma 2ⁿ, 3^m va 7^k darajalar ishtirok etsa n+m+k ni toping.

A) 40 B) 50 0 44 D)46

21. ni hisoblang.

A) 6cosx-7sinx+c B ) 6cosx+7sinx+c C) -7sinx-6cosx+c D) 7sinx-6cosx+c

22. funksiyaning aniqlanish sohasiga tegishli butun sonlar nehta?

A ) 1 B ) 2 C )0 D)3

23. tg70°tg50°tg45°tg10° ni hisoblang.

A) 1 B )2 C)√3 D)1/√3

24. Qavariq ko’pburchakning diognallari soni 5 ga teng bo'lsa, burchaklari sonini toping.

A) 7 B ) 4 C) 5 D) 6

25. tenglamani ildizlari ko'paytmasini toping.

A) 36 B ) 33 C) 48 D) 55

26. ni toping

A) 7 B ) y C) D)

27. Soddalashtirinig:

A) 2√a B ) 2√b C )0 D) 2√a-2√b

28. Sistemani yeching.

A) (-1;-3)va(1:3) B) (1;3) C) (-1:3) D) (3;1)

29. (x²+24x + 24)(x2 +x + 24)=24x² tenglamaning haqiqiy ildizlari yig’indisini toping.

A) -26 B) -23 C) -25 D -24

30.Parallelogram diognallarining uzunliklari 6 va 8 ga teng bo’lib, ular o’zaro perpendicular bo’lsa, unga ichki chizilgan doira yuzi aniqlansin.

A) 5,25π B ) 6,76π C) 4,84π D) 5,76π

31. Sonlami o’sish tartibida joylashtiring.

1) 40₍₅₎*9₍₁₆₎ 2) 24₍₈₎*A₍₁₆₎ 3) 10₍₁₆₎*11₍₁₀₎

A) 3,2,1 B) 3,1,2 C)2,1,3 D) 2.3,1

32.Mikrosoft Exsel dasturining C4 yacheykasida =B2*$D$$3 formula yozilgan. Shu formula D6 yacheykasida ko’chrilsa, formula qanday ko'rinishda bo’ladi?

A) =E4*$5C B) =B4*$C$3 C) =B4*$D$5 D) =C4*$C$3

33. MS Exselda ‘ -Cтепень(Abs(-)+3^2;2) ning qiymatini aniqlang:

A) 9 B) 144 C)81 D)12

34. HTML tilidagi Web-sahifada ta’riflash ro’yxatini hosil qilish uchun qanday teg ishlatiladi?

A)

B)

C) D) 35. V ELE , VIDE, VICI ifodani yozish uchun necha bit kerak: A) 72 B ) 16 C) 128 D) 88 36.Bir mamlakat hududidagi foydalanuvchilarni birlashtiradigan tarmoq qanday ataladi? A) lokal B) mintaqaviy C) global D) virtual