The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
None of these
If nN ,Then 23n-1 is divisible by
2
3
5
7
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
0
1
-1
22163
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
If in the expansion of (1 + x )n , the coefficient of rth and (r + 2)th term be equal , then r is equal to
2n
n/2
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
6th term in expansion of is
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
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
