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
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
1/(n + 1)
1/n - 1
The number of terms in the expansion (2x - 3y)5 is
5
6
10
30
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
The value of (0.99)15 is
0.8432
0.8601
0.8502
None of these
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
Cubroot of 217 is
6.01
6.04
6.02
is equal to.
100
120
-120
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
Tenth term of the expansion (2 x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
