Cube root of 217 is
6.01
6.04
6.02
None of these
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 (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 n is even , then the middle term in the expansion of is 924 x6 , then n is equal to
10
14
If the 4th term in the expansion of is independent of x , then n is equal to
5
6
9
If p and q be positive , then the coefficient of xp and xq in the expansion of ( 1 + x ) p+q will be
Equal
Equal in magnitude but opposite in sign
Reciprocal to each other
None of the above
The value of (0.99)15 is
0.8432
0.8601
0.8502
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
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
