(-2/8)^{2} =
1/16
-1/6
2/16
4/16
If a and b are two positive numbers such that ab is not a perfect square then an irrational number between a and b is ______.
^{(a+b)}/_{2}
ab
√(a+b)
√ab
One rational number between 3 and 4 is ______.
12
7
^{7}/_{2}
^{1}/_{2}
For any rational number a, a^{o} =
0
1
a
None of these
The sum of two rational numbers is ______.
A rational number
A real number
Irrational number
Rationalise the denominator of ^{3}/_{√5.}
3
^{3√5}/_{5}
^{3}/_{√5}
3√5
(2/7)^{3} × (2/7)^{5} ÷ (2/7)^{7} =
7/2
2/7
49/2
14/4
((2/5)^{2})^{3} × (1/5)^{-4} × 5^{-1} × 1/4
2^{3}/5^{3}
2^{4}/5^{3}
2^{4}/5^{2}
The expression of 81/256 in powers is ___________
The reciprocal of 6^{2} = ______________
1/36
-1/36
1/12