nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
is equal to
100
120
-120
None of these
In the expansion of , the coefficient of x-10 will be
12 a11
12 b11
12 a11 b
12 a11 b11
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
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 value of (0.99)15 is
0.8432
0.8601
0.8502
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
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
Cube root of 217 is
6.01
6.04
6.02
