k = 20082 + 22008 bo’lsin. k2 +2k ning oxirgi raqamini toping.
6 B) 4 C) 2 D) 0
Ikkinchi raqami uchinchi raqamidan 1 ta kam bo’lgan uch xonali sonlar sonini toping.
72 B) 90 C) 48 D) 81
ABC uchburchakning AE va BF medianalari P nuqtada kesishadi. Agar ABC uchburchakning yuzi 36 bo’lsa , PECF to’rtburchak yuzini toping.
18 B) 12 C) 16 D) 20
Oila erkak kishi , uning ayoli va talaba qizdan iborat. Agar erkak kishining maoshi 2 baravar oshsa , u holda oila daromadi 67% ga ortadi , agar talaba qizning stipendiyasi 3 barobar kamaysa oila daromadi 4 % qisqaradi. Ayolning maoshi oila daromadining necha foizini tashkil qiladi.
27% B) 25% C) 24% D) 30%
( + + + …..+ ni hisoblang.
5 B) 1 C) 11 D) 10
Agar a + b – 2c =0 bo’lsa ni hisoiblang.
1 B) 2 C) 3 D) 0
Agar x2 + x = 7 bo’lsa , 2 + 70x – x2 – x5 ning qiymatini toping.
42 B) 72 C) 90 D) 100
Agar ABC uchburchakda cos3A – sin(B-A) = 2 va AB= 2 bo’lsa BC ni toping.
2 B) 9 C) 4 D) 6
Agar | a+1 | ≤ 2 va a +b =4 bo’lsa , u holda ab – 2a ning eng kichik qiymatini toping.
-15 B) -12 C) -8 D) -20
Agar f(x) = x – 3 va f(g(x-1)) = 2 *g(f(x+2)) bo’lsa g(2004) = ?
4008 B) -3 C) -1002 D) 0