The greatest number among $\root 3 \of 9 ,\root 4 \of {11} ,\root 6 \of {17} $ is
$\root 3 \of 9 $
$\root 4 \of {11} $
$\root 6 \of {17} $
Can not be determined
The rationalising factor of $2\sqrt 3 - \sqrt 7 $ is
If $x + \sqrt {({x^2} + 1)} = a,$ then $x =$
${{12} \over {3 + \sqrt 5 - 2\sqrt 2 }} = $
Number of Solution of the equation ${(x)^{x\sqrt x }} = {(x\sqrt x )^x}$ are
The value of $\sqrt {[12 - \sqrt {(68 + 48\sqrt 2 )} ]} = $