Question

Rationalise ...........


4/√5 ..........

Answer 1

$\frac{4}{ \sqrt{5} } \\ \\ = \geqslant \frac{4}{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } \\ \\ = \geqslant \frac{4 \sqrt{5} }{5}$

Answer 2

REFER THE ATTACHMENTM...