The number of terms in the expansion (a + b + c)n will be
n + 1
n + 3
None of these
If in the expansion of (1 + x )n , the coefficient of rth and (r + 2)th term be equal , then r is equal to
2n
n/2
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
If (1 + ax)n = 1 + 8x + 24 x2 + ........ then the value of a and n is
2,4
2,3
3,6
1,2
6th term in expansion of is
10n + 3.4n + 2 + 5 is divisible by
3
4
9
15
The expansion of by binomial theorem will be valid if.
x < 1
|x| < 1
-2/√3 < x < 2/√3
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
Cube root of 217 is
6.01
6.04
6.02
