If the ratio of the coefficient of third and fourth term in the expansion of (x - 1/2 x )n is 1 : 2 , then the value of n will be
18
16
12
-10
The number of terms in the expansion (2x - 3y)5 is
5
6
10
30
If (1 + a x)n = 1 + 8 x + 24 x2 + ........ then the value of a and n is
2, 4
2, 3
3, 6
1, 2
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
For all n ∈ N, n2 + n is a/an
Odd natural number
Even natural number
Can't be defined
None of these
Cubroot of 217 is
6.01
6.04
6.02
The value of the expression x5 + 10 x4a + 40 x3 a2 + 80 x2a3 + 80 x a4 + 32 a5 is
(x + a)5
(3 n + a)5
(x + 2 a)5
(x + 2 a)3
The value of (0.99)15 is
0.8432
0.8601
0.8502
The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
The value of (1.002)12 upto fourth place of decimal is
1.0242
1.0245
1.0004
1.0254
