Number System Quiz 2

If ‘x’ is an irrational number then x – 3 is … number.

Number which can’t be expressed in p/q form are… numbers.

The combination of Q and S is the set of …… numbers where S is the set of all irrational numbers.

$(2+\sqrt{2})(2-\sqrt{2})$ is a… number.

$\sqrt{\frac{a}{b}}$ =

$(\sqrt{a}+b)(\sqrt{a}-b)$ =

$(\sqrt{5}+\sqrt{2})(\sqrt{5}+\sqrt{2})$ = .........

$(7+\sqrt{2})(7-\sqrt{2})$ =

The rationalising factor of $\frac{1}{5\sqrt{2}}$ is

The rationalising factor of $\frac{1}{\sqrt{27}}$ is