If the 4th term in the expansion of is independent of x , then n is equal to
5
6
9
None of these
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
The number of terms in the expansion of (1 + 6x + 9x2)23 is
24
46
47
48
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
12
-10
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
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
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 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
The value of (0.99)15 is
0.8432
0.8601
0.8502
