If the 4th term in the expansion of is independent of x , then n is equal to
5
6
9
None of these
If n is odd then c02 - c12 + c22 - c32 + ............. + (-1)ncn2 is equal to
0
1
∞
n! / (n/2)2!
The value of (1.002)12 upto fourth place of decimal is
1.0242
1.0245
1.0004
1.0254
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
-1
22163
If the coefficient of 7th and 13th term in the expansion of (1 + x ) n are equal , then n is equal to.
10
15
18
20
is equal to.
100
120
-120
The number of terms in the expansion (2x - 3y)5 is
30
If (1 + ax)n = 1 + 8x + 24 x2 + ........ then the value of a and n is
2,4
2,3
3,6
1,2
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
