2015-yilning variantlari Matematika (Informatika) javoblari bilan

VARIANT № 125
1. 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) )
2. Diognallarining soni tomonlarining sonidan 2 marta kam bo’lgan qavariq muntazam ko’pburchakning har bir uchidan bittadan olingan tashqi burchaklari va bitta ichki burchagi yig'indisini toping.
A) 540° B ) 360° C)900° D)450°
3. tgα+ctgα≥2 tengsizlik qachon o’rinli?
A) B )
C) D)
4. soni ga ortgan bo'lsa, necha marta ko’paygan?
A ) B) C ) D)
5. Tengsizliklar sistemasini yeching.

A) (2;4) B ) (3;5) C) (3.4) D) (3:6)
6. hosilasini hisoblang.
A) B) 8x⁷ - 3sin3x C) 8x⁷+3sin3x D)
7. Zarracha har minutda ikkiga ajraladi. Agar idishga 1 ta zarracha solinsa. u 1 soatda to’ladi.Shu idishda 2 ta zarracha solinsa. u qancha minutda to’ladi?
A) 45 B ) 59 C)30 D)49
8. Tenglamani yeching:
A) 2 B) 5 C) 1 D) 3
9. Hisoblang: sin56°+cos26°-√3cos4°
A ) -0,5 B ) 0 C)1 D)-1
10. 639 sonini kabi nisbatda toping.
A) ; ; B) ; ; C) ; ; D) ; ;
11. 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
12. tengsizlikni yeching.
A)(0;2] B(-2: 2) C)[-2:2] D) (0;2)
13. Teng yonli uchburchakning yon tomoniga tushirilgan mediannasi 5sm, asosi 4√2 sm bo’la, uchburchakning yon tomoni (sm) toping
A) 4√2 B) 6 C) 7 D) 5
14. Arifmetik progressiyada a₁₁ +a₇=6 ga teng, toping.
A ) 2 B) 7 C) 3 D) 1
15. Rasmda berilganlarga ko’ra x°=A) 50° B ) 65° C) 55° D) 60°

1 6. XOY tekisligida markazi (2;3) nuqtaga bo’lgan aylana rasmdagidek chizilgan Aylanani OY o'qi A va B nuqtalarga kesib o'tadi. Shulardan A nuqtaning ordinatasi topilsin.

A) B) C) D)

17. Agar f (a, b, c) = bo’lsa f(f( 1, 2,3),

F(2,3,1), f(2,3,1) f(2,31),f(3,1,2))ni toping.
A) 0 B)1 C) D) –
18. Bir burchagi qavariq. qolgan burchaklari botiq bo'lgan beshburchakning ichki burchaklari yig'indisini toping.
A) 960° B) 720° C) 540° D) 450°
19. Diognallarining soni tomonlari sonidan 3 marta ko'b bo'lgan qavariq muntazam ko'p burchakning barcha ichki burchaklari va bitta tashqi burchagi yig'indisini toping.
A) 1220° B ) 1340° C) 1300° D ) 500°
20. tengsizlikni yeching.
A) B) C) R D)
21. Teng yonli uchburchakning yon tomoni 20 sm. Agar uning asosi yon tomonining 0,6 qismini tashkil qilsa. unga tashqi chizilgan aylana radiusini (sm) toping
A) B) C) 52 D)
22. ifodani soddalashtiring.
A ) B) C) 0 D) 1
23. . ni soddalashtiring.
A) 3x-2 B) x+2 C)1-x D)
24. ni hisoblang.
A) 8 B) 5 C) 6 D) 10
25. tengsizlikni yeching
A) [0; 1,6] B ) ( 0; 1, 6 ) C) [0; 1,6]va[2,5; ] D)[0 ; 1,6] va [2; 5]
26. A B kesmaning uchlaridan va uning o'rtasidagi M nuqtadan chiqarilgan parallel tog'ri chiziqlar biror tekislikni A₁ B₁ M₁ nuqtalarda kesib o’tadi. Agar BB₁=7 m. AA₁=5 m va AB kesma tekislikni kesib o’tmagan bo’lsa. MM₁ kesma uzunligini (m) toping.
A) 6,2 B ) 6,4 C) 5 D) 6
27. tenglamaning ildizlari ko’paytmasini toping.
A) -4 B ) 4 C)6 D) -2
28 tengsizlikni yechimini ko’rsating
A) {-1} va ) [3;∞) B) ) [3;∞) C) [2; ∞) D) {-1} va [2;3]
29. tenglamadan x qabul qiladigan qiymatlami toping.
A) 1; √6 B)-1;-√6 C) 3;√6 D)±1;±√6
30. y=3ctgx funksiyaning F(π/2)=9 shartni qanoatlantiruvchi boshlang'ichini topib, F(5 π /2) ning qiymatini toping.
A) 18 B) 12 C )9 D) 10
31. 16 bit necha baytga teng?
A ) 3 B ) 2 C)4 D) 6
32. MS Excel 2003 dasturida berilgan =Если(Степен(3:4)>81; Сцепить(“ avto” :’'bus” ); MAKS (15;30;4)) formulani natijasini aniqlang.
A) 81 B)AVTOBUS С)30 D) avtobus
33. ... disklar va kompyuterga ulangan boshqa qurilmalarni ko'rish. shuningdek, ular bilan ishlash imkonini beruvchi dastur oynasini ochadi.
A) Мой комютер (Mening kompyuterim) B) Мои документы (Mening hujjatlarim )
C) Корзина (Savatcha) D) Сетевой окуржение (Tarmoq muxiti)
34 MS Exsel 2003 dasturirfing joriv “лист” ida nechta ustun mavjud
A) 255 B)253 C ) 254 D) 256
35. Magnit disklariga axborot qaysi qurilma yordamida yoziladi
A)Printer B ) Klavialura C) Disk yuritgich D)Nurli pero
36. Paskal tilida quyidagi dastur bajarilishi natijasida ckranga chiqariladigan axborotlarni aniqlang:
Var k. b:integer: c:string:
Begin K:=4: B:=5: C:="21": If k>b then write (C=",C: 1) else write ("C=".C: 1): end
A) C=21 B) C=212 C)6 =2 D)C=2121