Rationalise the denominator of
3 + 2√2
1 +2√2
3 - 2√2
1 - 2√2
The sum of two rational numbers is ______.
A rational number
A real number
Irrational number
None of these
3√5 ____ 4√3
<
>
=
None
is a ______ number.
Rational number
Real number
The standard from of 0.0000005 is ____________
5 × 107
5 × 10-7
5 × 106
5 × 10-6
( √3 - √2 )2 is a /an _____ number.
Rational
Irrational
Real
√5 + √5 = _______.
√10
√5
2√5
5
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
For any rational number a, ao =
0
1
a
If x = 5 - 4 √6, then 1/x = ______.
