If n is even , then the middle term in the expansion of is 924 x6 , then n is equal to
10
12
14
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
6th term in expansion of is
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
-10
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
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
0
1
-1
22163
If the 4th term in the expansion of is independent of x , then n is equal to
5
6
9
If (1 + ax)n = 1 + 8x + 24 x2 + ........ then the value of a and n is
2,4
2,3
3,6
1,2
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
