2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 106
1. va bo'lsa, x. y va z uchun quyidagi munosabatlardan qaysi biri o’rinli?
A) z2. To’g’ ri burchakli uchburchakning perimetri 40 dm, yuzi 60 dm2 ga teng. Uchburchakning katetlari uzunliklarini (dm) toping.
A) 7 v a 11 B) 7 va 13 C ) 4 va 12 D) 8 va 15
3. tenglamaning ildizlari yig’indisini toping.
A) B ) C) D
4. ifodani soddalashtiring (a>0, b> 0).
A) 0 B) a-b C)1 D )
5. Aylanaga tashqi chizilgan muntazam oltiburchakning tomoni bo’Isa, aylanaga ichki chizilgan kvadratning yuzini hisoblang.
A) 18 B) 12 C) 24 D) 16
6 . Teng yonli trapetsiyaning o'tmas burchagi uchidan tushirilgan balandlik kata asosini 3 dm va 6sm li kesmalarga ajratsa, trapetsiyaning kichik asosini toping.
A) 2,4 dm B ) 3 sm C) 2,4 sm D) 2,7 dm
7. tenglamani yeching.
A) 1 B ) C )∅ D) 3
8. Bankka 50000 so’m pul qo’yildi. Bir yildan so’ng jamg’arma p% ga ko’paydi. Jamg’armaning miqdori necha so’mga etdi?
A) 50000p B )500(p+100) C) 50000(p+100) D) 50000+ 100p
9. Taqqoslang: a= va
A) a>b B ) a10. To’g’ri parallelopipedning asosi rombdan iborat bo'lib, parallelopiped diagonal kesimlarining yuzlari S₂ va S₁ bo’lsa, parallelepiped yon sirtining yuzini toping.
A) B) C) D) )
11. Tenglamani yeching.
A) B ) C ) D)
12. funksiya hosilasining x=1 dagi qiymatini toping.
A) 4(e ln5)^-1 B) C) D)
13. 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 ) – ¼ B)-1/2 C )0 D ) 1
14. tenglamalar sistemasidan |x-y| ni toping.
A ) 1 B) 3 C)2 D)0
15. tengsizlikni yeching.
A) (0,1;10) B) ( ) C)(-1/2;0) D)(1;10)
16. ABC uchburchakda A) 8 B) 12 C)10 D) 24
17. soni ga ortgan bo'lsa, necha marta ko’paygan?
A ) B ) C) D)
18. tenglamani yeching.
A) 2 B ) 1,5 C) 0,5 D)1
19. A(2:-5) nuqtadan o'tuvchi va y=x² -6x+5 parabolaga urinuvchi to’g’ri chiziqning urinish nuqtasi abssissalari ko'paytmasini toping
A) -4 B ) 4 C)2 D) -2
20 ABCD trapetsiyaning AC diognali CD yon tomoniga perpendikular. Agar A) 135° B) 142° C) 132° D) 138°
21. Muntazam oltiburchakning tomoni √108 sm bo'lsa, unga tashqi va ichki chizilgan aylana radiuslarining nisbatini toping.
A) B) C) D)
22. tengsizlikni yeching.
A)(-∞; ∞) B) (8 ; ∞) C) (∞;0) U (6 ; ∞) D) (-∞;0] U ( 8; ∞)
23 f(x) = (2x-4)⁷ funksivaning hosilasini toping.
A) 14(4+2x)⁶ B ) 14(4-2x) ⁶ C) -14(4-2x) ⁶ D) -14(4+2x)⁶
24. 4(n-1)€N son 1 .1 3. 4, 5. 6 . 8. 10 va 20 ga qoldiqsiz bo'linsa. n ning kichik natural qiymatini toping.
A) 31 B ) 27 C)28 D)25
25. sinx = 0,1 x tenglama nechta ildizga ega?
A) 10 ta B ) 5 ta C) 7 ta D )3ta
26. Teng yonli trapetsiya asosidagi burchakning sinusi 0,6 ga, asoslarining ayirmasi 4 ga teng bo’lsa, trapetsiyaning yon tomonini toping.
A) 4 B ) 2 C )2 .5 D) 3
27. y=3ctgx funksiyaning = 9 shartni qanoatlantiruvchi boshlang’ichini topib, F ning qiymatini toping.
A) 10 B) 12 C ) 18 D ) 9
28. ni soddalashtiring.
A) a-b B) C) ab D) a+b
29. Radiusi R ga teng bo'lgan aylanaga tashqi chizilgan muntazam n nurchakning tomoni b gating bo'lsa, shu aylanaga ichki chizilgan muntazam n - burchakning lomonini toping.
A) B) C) D)
30. Bo'luvchi 4/3 marta orttirilsa, bo'linuvchining esa 1/3 qismi bo’linma qanday o’zgaradi?
A) 0.(8) marta oshadi B)o'zgarmaydi C) 25% ca oshadi D) 2 marta kamayadi
31. Elektron jadval fayli nomining kengaytmasi qanday ifodalanishi mumkin?
A) barcha javoblar to'gri B ) dos C) rgn D) xls
32. A="Protsessor tarkibida boshqaruv qurilmasi bor‘‘, B="11111₂=31₁₀ “.C="1 ta belgi=1 bayt“ mulohazalar qiymati asosida quvidagi mantiqiy ifoda qiymatini aniqlang:
A) Yolgon B) Mantiqiy ifoda xato yozilgan
C) Sodda mulohazalardan ba'zilarini qiymatini aniqlab bo'lmaydi D) Rost
33. Ayni vaqtda ish olib borayotgan katalog (papka)... deyiladi
A) joriy katalog (papka) B) katalog (papka) osti C) 2-pog'ona katalogi (papka) D ) bosh katalog (papka)
34. MS Excell 2003 dasturining joriy “лист“ dan boshqa “лист“ kataklarida murojaat to'g'ri berilgan javobni ko’rsating.
A) “лист“ nomi //katak adresi B) “лист“ nomi /katak adresi C) “лист“ nomi.katak adresi
D) “лист“ nomi !katak adresi
35.Favllaming diskdagi bo’laklarini bir joyda to'plash ... deb ataladi.
A) defragmentatsiya B ) nazorat C) fayllami tiklash D) formatlash
36. Paskal tilining quvidagi takrorlash operatoridagi takrorlanishlar operatoridagi takrorlanishlar sonini aniqlang:
For i:=-17 downto - 1 do write (talaba');
A ) 17 B ) 0 C ) 1 D ) 19