In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
None of these
The number of terms in the expansion of (1 + 6x + 9x2)23 is
24
46
47
48
6th term in expansion of is
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
The value of the expression x5 + 10 x4a + 40 x3 a2 + 80 x2a3 + 80 x a4 + 32 a5 is
(x + a)5
(3n + a)5
(x + 2a)5
(x + 2a)3
If n N ,Then 23n-1 is divisible by
2
3
5
7
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
The value of (0.99)15 is
0.8432
0.8601
0.8502
If n N ,then x2n-1+y2n-1 is divisible by
x+y
x-y
x2+y2
x2+xy
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
