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
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
If nN ,Then 23n-1 is divisible by
2
3
5
7
6th term in expansion of is
None of these
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
0
1
-1
22163
Cuberoot of 217 is
6.01
6.04
6.02
If nN ,then x2n-1+y2n-1 is divisible by
x+y
x-y
x2+y2
x2+xy
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
