2015-yilning variantlari Matematika (Informatika) javoblari bilan

2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 101
1.Uchburchakning tomonlari 15,14,13 bo’lsa, uchburchakka ichki chizilgan aylana radiusini toping.
A) 3 B)2 C)4 D) 7
2. Tengsizliklar sistemasini yeching.

A)(2;4) B)(3;6) C)(3;4) D) (3;5)
3 .Radiuslari bir xil 3sm gat eng bo’lgan ikki aylan rasmdagidek ABCD trapetsiyada ichki chizilgan.Agar uning AD va BC asoslari mos ravishda 15 sm va 10sm bo’lsa,uning yon tomonlari AB va CD lar uzunliklari yig’indisini toping.



A) 19 sm B)25sm C)13sm D) 12sm
4.arcsinx/2>arcsin(x-1) tengsizlikni yeching
A) [0;1/2) B)[-1;1] C)(1/2;1] D) [0;2)

5. 324;255;71 sonlarining har birini qanday natural songa bo’lganda bir xil bo’ladi
A) 25 B)27 C)29 D) 23
6. ni hisoblang.
A)825 B)1 C)625 D)980
7.O’ngdan katta bo’lmagan barcha natural sonlar ko’pamymasining natural bo’luvchilari sonini toping.
A)275 B)270 C)280 D)260
8. Kasrni qisqartiring
A) B) C) D)
9. x=?
A)2b-c+a
B)b+2c+a
C)b+2c-a
D)2b-2c+a
10. dx ni hisoblang
A) B) C ) D )
11. Tengsizliklar sistemasi a ning qanday qiymatlarida yechimga ega bo’lmaydi
A) [1,5;∞) B) (-∞;0) C)(3; ∞) D) (-∞;0)va (3; ∞)
12. funksiyaning aniqlanish sohasini toping
A ) B) C) D)
13. funksiyaning hosilasini toping
A) 4x(1+2x) B) 2(1+2x) C) 4x(1-2x) D) 4(1+2x)
14. Biror sonning 25% ko’pi bilan shu sonning 25% kamidan necha foiz ko’p
A) B) C) D) 67
15.Asoslari 8 va 2 bo’lgan teng yonli trapetsiyaga aylana ichki chizilgan. Katta asosiga, yon tomonga va ichki chizilgan aylanaga urinuvchi aylana radiusini toping
A) B) C) D)
16. tenglama bilan berilgan aylana chegaralab turgan soha yuzini toping
A) B) C) D)
17. tengsizlikni yeching.
A) B) C) R D)
18.Agar bo’lsa, ni orqali ifodalang.
A) B) C) D)
1 9.Rasmda berilgan ma’lumotlarga ko’ra ning kattaligi aniqlansin. Bu yerda AB=AC, , BD=BC
A) B) C) 25 D)
20. Agar ABC uchburchakka BE medianna va AD bissektrisalar o’zaro perpendikulyar bo’lsa AB:AC nisbatini toping.
A) 1:2 B) 2:1 C) 3:1 D)1:3
21. ni hisoblang
A) B) C) D)
22. tengsizlikni yeching
A) B) C) D)
23. ni soddalashtiring x>0
A) B)3 C)2 D) 1
24.To’g’ri parallelopedning asosi rombdan iborat bo’lib, paralleloped diognal kesimlarining yuzlari va bo’lsa paralleloped yon sirtining yuzini toping.
A) B) C) D) )
25.Teng yonli trapetsiyaning diognali o’rta chizig’ini 1.5 va 7.5 ga teng kesmalarga ajratadi. Tapetsiyaning yuzasi 72 ga teng bo’lsa,uning yon tomonini toping.
A) 10 B)8 C)20 D) 5
26. tenglamani yeching
A) (-5,5;6) B)(-6,5;6) C)(-5,5;-6) D)(5,5;6)
27.Agar a=-1, b=-3 bo’lsa ni hisoblang
A) B) C) 15 D)
28. tenglikni qanantlantiruvchi a,b,c larni toping
A)a=b=c=1/3 B)a=1/3 b=-1/3 c=2/3 C)a=2/3 b=-1/3 c=1/3 D)a=1/3 b=2/3 c=-1/3
29. tengsizlikning eng katta manfiy butun yechimining eng kichik musbat yechimiga nisbatini toping
A)-1/2 B)-1/5 C) -1/4 D) -1/3
30. Agar bo’lsa, ni toping
A) B) C) D)
31.DATA operatori qanday vazifani bajaradi?
A) Operatordan keyin turgan xarflarni saqlab qoladi
B)Operatordan keyin kelgan sonlarni xotirada saqlaydi
C) Operatordan keyin kelgan sonlarni o’zgaruvchilarga beradi
D)ma’lumotlar blokini tashkil qiladi.
32.MS Excelda A1=25, B3=144 bo’lsa “=КОРЕНЬ(B3)+ КОРЕНЬ(B3+A1)” Formulaning natijasini aniqlang
A)24 B)13 C)12 D)25
33.Kompyuterga dasturiy ta’minotini o‘rnatish jarayoni…. Deyiladi
A)deinstallyatsiya B)defragmentatsiya B)arxivlash D)intsallyatsiya
34.MS Excel 2003 dasturining joriy “лист” ida nechta ustun mavjud?
A)255 B)253 C)256 D)254
35.Web sahifaga rasm joylashtirish uchun…. Juft emas tegi qo’llaniladi
A) B) C)
D)
36.Internetdagi ma’lumotlarni uzatish qoidalari …..deyiladi
A) promouterlar B)protokollar C)provayderlar D)dasturlar