$\sqrt[4]{\sqrt[3]{2^{2}}}$ equals
$2^{-\frac{1}{6}}$
$2^{\frac{1}{6}}$
$2^{-6}$
$2^{6}$
If $x=5+2 \sqrt{6},$ then find the value of $x^{2}+\frac{1}{x^{2}}$ and $x^{3}+\frac{1}{x^{3}}$
For each question, select the proper option from four options given, to make the statement true : (Final answer only)
$.............$ is a rational number between $7$ and $8 .$
Classify the following numbers as rational or irrational with justification:
$(i)$ $\sqrt{196}$
$(ii)$ $3 \sqrt{18}$
Show that $0 . \overline{076923}=\frac{1}{13}$
Express $0 . \overline{4}$ in the form $\frac{p}{q} ;$ where $p$ and $q$ are integers and $q \neq 0$