The sum to n terms of 1, 8, 27, 64, ........ is ______.
The sum of the series 1 + 1/2 + 1/22 + .......... is __________.
1
1/2
2
None of these
The sum of the squares of first n natural numbers is _______.
If a, b, c are in G. P, then which of the following is true?
a = bc
b2 = ac
c = ab
a2 = bc
The nth term of the series -3 + 6 - 12 + 24 - 48 .......... is _________.
( -1 )n * 3 * 2n-1
1n * 3 * 2n-1
3 * 2n+1
2 * 3n-1
The first term of an A.P is -1, and the C.D is -3 then 12th term is __________.
34
32
-32
-34
Sum of the terms 1, 2, 3, 4, ......., n is _________.
Sum of cubes of first n natural numbers is _______.
The 7th term of 1/3, 1/7, 1/11, ........... is ____________.
27
0
7/3
1/27
12 + 22 + 32 + ............ + 1002 = ?
5050
( 5050 )2
42925
