Question

rationalise the denominator of 13{√5​

Answer 1

Answer:

$\frac{13}{ \sqrt{5} }$

on multiplying both the denominator and numerator with√5

$\frac{13}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} }$

$\frac{13 \times \sqrt{5} }{ \sqrt{5 } \times \sqrt{5} }$

$\frac{13 \sqrt{5} }{5}$

So,

$\frac{13}{ \sqrt{5} } = \frac{13 \sqrt{5} }{5}$

Answer 2

Step-by-step explanation:

13/√5

13*√5/√5*√5

13√5/5

It is the answer hope it helps you☺️