-----------------------------------------------------
4/sqrt 5
Multiply by the conjugate:
4 sqrt 5/sqrt 5 sqrt 5
sqrt 5 * sqrt 5= 5
[tex]\frac{4 \sqrt{5} }{5}[/tex]
Your Answer Is [tex]\frac{4 \sqrt{5} }{5}[/tex]
plz mark me as brainliest :)