Question

rationlise the denominator
$4 \3 - \sqrt{7}$
this question please tell fast ...
​

Answer 1

Answer:

Rational number is a number that can be expressed as the quotient or fraction p

Answer 2

$\frac{4}{3 - \sqrt{7} } \times \frac{3 + \sqrt{7} }{3 + \sqrt{7} } \\ = \frac{12 +4 \sqrt{7} }{9 - 7} \\ = \frac{16 \sqrt{7} }{2} \\ = 8 \sqrt{7}$