Cubroot of 217 is
6.01
6.04
6.02
None of these
If in the expansion of (1 + x )n , the coefficient of rth and (r + 2)th term be equal , then r is equal to
2 n
n/2
The sum of the coefficient in the expansion of (1+x - 3 x2)2163 will be
0
1
-1
22163
The value of (0.99)15 is
0.8432
0.8601
0.8502
If the ratio of the coefficient of third and fourth term in the expansion of (x - 1/2 x )n is 1 : 2 , then the value of n will be
18
16
12
-10
is equal to.
100
120
-120
The value of (1.002)12 upto fourth place of decimal is
1.0242
1.0245
1.0004
1.0254
Tenth term of the expansion (2 x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
If n is odd then c02 - c12 + c22 - c32 + ............. + (-1)ncn2 is equal to
∞
n! / (n/2)2!
The value of the expression x5 + 10 x4a + 40 x3 a2 + 80 x2a3 + 80 x a4 + 32 a5 is
(x + a)5
(3 n + a)5
(x + 2 a)5
(x + 2 a)3
