The value of (0.99)15 is
0.8432
0.8601
0.8502
None of these
The value of the expression x5 + 10 x4a + 40 x3 a2 + 80 x2a3 + 80 x a4 + 32 a5 is
(x + a)5
(3n + a)5
(x + 2a)5
(x + 2a)3
Cuberoot of 217 is
6.01
6.04
6.02
The value of (1.002)12 upto fourth place of decimal is
1.0242
1.0245
1.0004
1.0254
If the coefficients of x2 and x3 in the expansion of (3 + ax)9 be same, then the value of a is
3/7
7/3
7/9
9/7
If the ratio of the coefficient of third and fourth term in the expansion of (x - 1/2x )n is 1 : 2 , then the value of n will be
18
16
12
-10
The number of terms in the expansion of (1 + 6x + 9x2)23 is
24
46
47
48
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
In the expansion of , the coefficient of x-10 will be
12 a11
12 b11
12 a11 b
12 a11 b11
If nN ,Then 23n-1 is divisible by
2
3
5
7