The product (32) (32)1/6 (32)1/36 ..... is
16
32
64
0
If a, b, c be in arithmetic progression, then the value of (a+2 b - c) (2 b + c - a) (a + 2 b + c) is
16 a b c
4 a b c
8 a b c
3 a b c
In an AP the sum of any two terms, such that the distance of one of them from the beginning is same as that of the other from the end, is
first term
sum of first and last terms
last term
half of the sum of the series
is equal to
n
1/n
1/2 (n+n-1)
1/2 (en + e-n)
Fifth term of a GP is 2, then the product of its 9 terms is
256
512
1024
1100
The value of 91/3 × 91/9 × 91/27 × ...... is
9
3
1
None of these
If three numbers a,b,c are in harmonic progression, then which of the following is true?
1/a, b, 1/c are in AP
1/bc, 1/ca, 1/ab are in HP
ab, bc, ca are in HP
a/b, b/c, c/a are in HP
if x = 1 + 2 + 4/2! + 8/3! + 16/4! + ...., then x-1 is equal to
e-2
e2
e1/2
The arithmetic means of first n odd natural number is
n2
2 n
3 n
If 2/3, k, 5/8 are in AP, then value of K is
15
21
12
31/48
