2015-yilning variantlari Matematika (Informatika) javoblari bila
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, 3m va 7k 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
