The rationalising factor of 4 square root 5 .

Option

A. Square root 5

B. 3 square root 5

C. 4 square root 125

Open in App

Solution

Answer is root 5.
because
when
( 4 root 5 × root 5 )/ root 5

= (4 ×5) / root 5

= 20/ root 5

Suggest Corrections

Similar questions

4+3square root 5/square root 5 = a+b square root 5 . Find the value of b :

Find the value of a in 3 - square root 5 / 3 + 2 square root 5 = a square root 5 - 19/11

Join BYJU'S Learning Program

Related Videos

Solving QE by Factorisation

MATHEMATICS

Watch in App

Explore more

Join BYJU'S Learning Program