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
nc0 - 1/2 nc1 + 1/3 nc2 - ........ + (-1)n is equal to
n
1/n
1/(n + 1)
1/n - 1
The sum of the coefficient in the expansion of (1+x - 3x2)2163 will be
0
1
-1
22163
Tenth term of the expansion (2x - y)71 is
-220 x2 y9
220 x2 y9
220 x2 y10
-220 x3 y9
6th term in expansion of is
None of these
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 (1.002)12 upto fourth place of decimal is
1.0242
1.0245
1.0004
1.0254
is equal to.
100
120
-120
In the expansion of , the term containing x4 is
70 x4
60 x4
56 x4
The value of (0.99)15 is
0.8432
0.8601
0.8502
