If n is even , then the middle term in the expansion of is 924 x6 , then n is equal to
10
12
14
None of these
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
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
-10
is equal to
100
120
-120
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
In the expansion of , the coefficient of x-10 will be
12 a11
12 b11
12 a11 b
12 a11 b11
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
The expansion of by binomial theorem will be valid if
x < 1
|x| < 1
-2/√3 < x < 2/√3
If n is odd then c02 - c12 + c22 - c32 + ............. + (-1)ncn2 is equal to
0
1
∞
n! / (n/2)2!
