Cubroot of 217 is
6.01
6.04
6.02
None of these
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
If n is even , then the middle term in the expansion of is 924 x6 , then n is equal to
10
12
14
If (1 + ax)n = 1 + 8x + 24 x2 + ........ then the value of a and n is
2,4
2,3
3,6
1,2
The number of terms in the expansion of (3 + 2√5)18 - (3 - 2√5)18 is
11 terms
10 terms
9 terms
8 terms
The number of terms in the expansion (2x - 3y)5 is
5
6
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
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
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
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
