Consider this radical expression:

$\(\sqrt{961}\)+\(\sqrt{49}\)$

Indicate if the root is a real number or not. In the case of a real number, evaluate.

Rationalize the denominator of the radical expression.

$\(\frac{1}{\sqrt{210}\)}$

Rationalize the denominator of the radical expression.

$\(\frac{\sqrt7}{\sqrt{37}\)}$

Rationalize the denominator of the radical expression.

$\(\frac{\sqrt{31}\)}{\(\sqrt{91}\)}$

Rationalize the denominator of the radical expression.

$\(\frac{13}{\sqrt{17}\)-1}$

Rationalize the denominator of the radical expression.

$\(\frac{10}{\sqrt{11}\)+\(\sqrt{21}\)}$

Rationalize the denominator of the following expression.

$\(\frac{7-s}{27-2\sqrt{s}\)}$