(-3)4 ÷ (-3)2 = 3n Then the value of n is
The expression of 81/256 in powers is ___________
( √3 - √2 )2 is a /an _____ number.
Rational
Irrational
Real
None
The reciprocal of (-2/5)3 = ___________
-8/15
125/8
-125/8
None of these
Simplify
39√3+1
78√3
The sum of two rational numbers is ______.
A rational number
A real number
Irrational number
The rationalising factor of 7 - √7 is _____.
7√7
√7
7
(7-√7) (7 + √7 ) =72 - (√7)2
= 49 -7 = 42.7+√7 is the rationalising factor of 7-√7
(-7/10)3 ÷ (-7/10)9 = ________________
(-1/10)12
(-10/7)12
(-7/10)-6
(-10/7)6
3√5 ____ 4√3
<
>
=
One rational number between 4/3 and 7/5 is ______.
28/30
-1/30
41/30
23/30
