If n∈N ,then x2n-1+y2n-1 is divisible by
x+y
x-y
x2+y2
x2+xy
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
None of these
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
0
1
-1
22163
If n is even , then the middle term in the expansion of is 924 x6 , then n is equal to
10
12
14
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
If the coefficient of 7th and 13th term in the expansion of (1 + x ) n are equal , then n is equal to.
15
18
20
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
If the 4th term in the expansion of is independent of x , then n is equal to
5
6
9
If the coefficients of x2 and x3 in the expansion of (3 + ax)9 be same, then the value of a is
3/7
7/3
7/9
9/7
