(-7/10)3 ÷ (-7/10)9 = ________________
(-1/10)12
(-10/7)12
(-7/10)-6
(-10/7)6
The standard from of 0.0000005 is ____________
5 × 107
5 × 10-7
5 × 106
5 × 10-6
One rational number between 3 and 4 is ______.
12
7
7/2
1/2
The rationalising factor of 7 - √7 is _____.
7√7
√7
(7-√7) (7 + √7 ) =72 - (√7)2
= 49 -7 = 42.7+√7 is the rationalising factor of 7-√7
( √3 - √2 )2 is a /an _____ number.
Rational
Irrational
Real
None
The sum of two rational numbers is ______.
A rational number
A real number
Irrational number
None of these
3√5 ____ 4√3
<
>
=
Rationalise the denominator of
√3
√2
√3 + √2
√3 - √2
For any rational number a, ao =
0
1
a
If x = 5 - 4 √6, then 1/x = ______.