If n is odd then c02 - c12 + c22 - c32 + ............. + (-1)ncn2 is equal to
0
1
∞
n! / (n/2)2!
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
None of these
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 number of terms in the expansion of (3 + 2√5)18 - (3 - 2√5)18 is
11 terms
10 terms
9 terms
8 terms
If (1 + a x)n = 1 + 8 x + 24 x2 + ........ then the value of a and n is
2, 4
2, 3
3, 6
1, 2
6th term in expansion of is
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
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 number of terms in the expansion (2x - 3y)5 is
5
6
10
30
is equal to.
100
120
-120
