Find three different irrational numbers between the rational numbers $\frac{5}{7}$ and $\frac{9}{11}$.
$\frac{5}{7}$ $=0 . \overline{714285}$
$\frac{9}{11}$ $=0 . \overline{81}$
As there are an infinite number of irrational numbers between $0 . \overline{714285}$ and $0 . \overline{81}$, any three of them can be :
$0.73073007300073000073 \ldots$
$0.75075007500075000075 \ldots $
$0 .79079007900079000079 \ldots$
Divide $8 \sqrt{15}$ by $2 \sqrt{3}$
State whether the following statements are true or false. Give reasons for your answers.
$(i)$ Every natural number is a whole number.
$(ii)$ Every integer is a whole number.
$(iii)$ Every rational number is a whole number
Find :
$(i)$ $9^{\frac{3}{2}}$
$(ii)$ $32^{\frac{2}{5}}$
$(iii)$ $16^{\frac{3}{4}}$
$(iv)$ $125^{\frac{-1}{3}}$
Is zero a rational number ? Can you write it in the form $\frac{p}{q}$, where $p$ and $q$ are integers and $q \ne 0$ ?
Check whether $7 \sqrt{5}, \,\frac{7}{\sqrt{5}}, \,\sqrt{2}+21, \,\pi-2$ are irrational numbers or not.