2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 104

1. y=3+3(x-2 )² funksiya grafigi koordinata tekisligining qaysi choraklaridan o’tadi?

A) I va II B) I,II va III C) I,II va IV D) barchasidan

2. tengsizlikning yechimlari sohasini toping.

A) -3; 3 B) (-∞;-1) va (6 ;∞) C) (6 ; ∞) D) (-∞; 3)

3. ko’phadni ko’phadga bo’lgandagi qoldiqni toping

A) 2-x B) x-2 C) -5x D) 5x

4. va vektorlarberilgan. va vektorlar orasidagi burchakni toping.

A) 150° B) 60° C)135 ° D) 120°

5. ko’phad quyidagilardan qaysi biriga qoldiqsiz bo'linadi?

A) x+3 B ) x+2 C) x-3 D)x-1

6. ni hisoblang

A) -0,4 B ) 0,(6) C) 0,4 D) -0,6

7. ni hisoblang.

A) B) C) D)

8 . Tenglamani yeching.

A) B ) C ) D)

9. ni hisoblang.

A ) -½ B ) ½ C)1 D) 1/4

10. 5927031, 4587, 3069 sonlarining umumiy bo'luvchilarini toping.

A) 148 B ) 48 C)56 D) 156

11. 4(n-1) € N son 1,2,3,4,5,6,8,10 va 20 ga qoldiqsiz bo'linsa, n ning eng kichik natural qiymatini toping.

A) 25 B) 27 C)27 D )31

12. X O Y dekart koordinatalar tekisligi A(3;2), B(1:3) M (2;1) va N(z; -1)nuqtalar berilgan bo’lib, ulardan tuzilgan va vektorlarning uzunliklari teng bo’lsa, z qanday qiymat qabul qiladi?

A) 0 yoki 4 B)1 yoki 4 C)1 yoki 3 D)-1 yoki -3

13. Ikkita qo’shni yoqlarning markazlari orasidagi masofa √8 ga teng bo’lgan kubga tashqi chizilgan shar sirtining yuzini toping

A ) 108π B ) 144π C)120π D) 125π

14. Teng yonli trapetsiya asosidagi burchakning sinusi 0,6 ga.asoslarining ayirmasi 4 ga teng bo’lsa, trapetsiyaning yon tomonini toping.

A) 4 B) 3 C)2,5 D ) 2

15. ni soddalashtiring

A)1 B) C)a D)2

16. 9 ga bo’lganda qoldiq 7 ga, 8 ga bo’lganda esa qoldiq 3 ga teng bo’ladigan hamda ikkinchi bo’linma birinchi bo'linmadan 1 ga ortiq bo’ladigan natural sonni toping.

A) 75 B ) 61 C)9 1 D) 43

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

A) 80° B ) 100° C)70° D ) 110°

18. tenglamalar sistemasini yechig

A) (2;3) B)(9;0),(28;-1) C)(9;0),(2;7) D) (7;2),(28;-1)

19. tenglamani yeching. (a≠b+1, a>0 , b>0

A)(a-b)² B) (a+b)² C) a D) 1

2 0 . tengsizlikni yeching.

A) (-2; 2) B ) [-2; 2] 0 ( 0 ; 2] D )(0;2)

21 Radiuslari r=1 sm va R=3 sm bo'lgan aylanalar tashqi ravishda urinadi.Aylanalar urinish nuqtasidan ularning umumiy urinmalarigacha bo'lgan masofani (sm) toping

A) 4/5, B ) 3/2 C)5/6 D)2/3

22. tenglamaning ildizlari ko’paytmasini toping.

A ) 4 B) -2 C) 6 D)-4

23 Rasmda berilganlarga ko’ra. AD/AB ning qivmati topilsin?

A) B) C) D)
24. tenglama [- 2π; 2 π] kesmada nechta ildizga ega?

A)3 B) 2 C)∅ D )1

25. Ucburchakning ikkita tomoni 24 va 11 ga, ular orasidagi burchagi 120° ga teng. Shu burchakka tashqi chizilgan aylana radiusini toping.

A) B) C) D)

26. |x² -x-3|+1+x=0 tenglamani yeching.

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

27. Toq funksiyani ko'rsating

A) B ) y=2x² -3|x|+2 C) y=xcosx D)

28. bo’lsa, ni toping.

A) B) C) D)

29. 3 soni bilan noma’lum son orasiga shunday son qo’yillganki, bu uchta son arifmetik progressiya tashkil qiladi. Agar ikkinchi son 6 ga kamaytirilsa, musbat hadli geometrik progressiya hosil bo'ladi. Arifmetik

Progressiyaning ikkinchi hadini toping.

A) 15 B) 27 C ) I4 D) 12

30. x=?

A) 2b-c+a B) b+2c+a

C) b+2c-a D) 2b-2c+a
31. . 1000 Kbayt axborot necha bitga teng?

A) 20³ ∙2⁹ B ) 10² ∙2¹³ C) 20² ∙2¹⁰ D) 20³ ∙2¹⁰

32. Kompyuterdagi axborotlarni telefon tarmoqlari orqali yubora olishga imkon beruvchi qurilma bu -...

A) Disk B)Modem C) ARPANet D) URL

33. Dinamik kutubxona fayllarining kengaytmasini toping.

A) .bat B) .bak C) .xls D) .dll

34. MS Excell 2003 dasturining joriy “лист“ ida nechta satr mavjud?

A) 65536 B ) 65526 C) 65556 D) 65436

35. Quyida keltirilgan URL manzilda bavonnoma (protokol) nomini ko'rsating. http.//www .tns.uz

A) uz B) http C)tps D) www

36. Paskal tilida quyidagi dastur natijasini aniqlang.Var a. k: integer; Begin a:=-2; For k:=- 5 to 1 do a:=(-2)*a; write(a);end

A)256 B ) -2 C) 512 D)-512