Majburiy fan

47. Qaysi juftlik o`zaro tub sonlardan iborat?
A) (8; 14) B) (11; 22)
C) (12; 35) D) (12; 34)
48. 2x(x  1) (2x  1)(x + 1) ifadani standart shaklga keltiring.
A) 4x²  1 B) 3x + 1
C) 3x + 1 D) 4x²  5x + 1
49. (4x  3)²  x(4x + 1) ifadani standart shaklga keltiring.
A) B)
C) D)


50. ni soddalashtiring.
A) x  1 B) x C) 2x D) x + 1
51. _{ } ni hisoblang
A) 4 B) 46 C) 36 D) 54
52. ni ko`paytivchilarga ajrating.
A) B)
C) D)


53. (a  3b)² (a + b)² ni soddalashtiring
A) 8b²  8ab B) 8b²
C) 2b²  8ab D) 8b²
54. 1 dan 10 gacha bo`lgan natural sonlarning yig`indisi qanday raqam bilan tugaydi
A) 6 B) 55 C ) 5 D)4


55. Murakkab sonlar berilgan qatorni toping.
A) 2,4,6 B) 4,6,8 C) 3,7,9 D) 4,5,7


56. O`zi tushgan tomonni ikkiga bo`luvchi kesma bu-….
A) Balandlik B) Bissektrisa
C) Mediana D To`g`ri javob yo`q


57. Perimetri 30 bo‘lgan uchburchakning bissektrisasi uni perimetrlari 16 va 24 bo‘lgan uchburchaklarga ajratadi. Berilgan uchburchakning bissektrisasini toping
A)5 B)6 C)7 D)8


58. ABC uchburchakning bissektrisasi AS, tomonni 28 va 12 ga teng bo‘lgan kesmalarga ajratadi. Agar ABBC=18 bo‘lsa, berilgan uchburchakning perimetrini toping
A)85 B)95 C)65 D)55


59. Uchburchakning b=3 va c=4 ga teng tomonlari orasidagi burchagi 60º ga teng. Uchburchakning uchinchi tomonini toping
A) B) C) D)13