The rationalising factor of 5 sqrt{2} is .... | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) rationalising factor is a number that,when multiplied by a given irrational number,results in a rational number.For the expression $5 \sqrt{2}$,th

Vedclass · Accepted Answer

$\sqrt{2}$

Vedclass · Answer

(D) rationalising factor is a number that,when multiplied by a given irrational number,results in a rational number.For the expression $5 \sqrt{2}$,the irrational part is $\sqrt{2}$.To make $\sqrt{2}$ rational,we multiply it by $\sqrt{2}$ because $\sqrt{2} 	imes \sqrt{2} = 2$,which is a rational number.Therefore,the rationalising factor of $5 \sqrt{2}$ is $\sqrt{2}$.

The rationalising factor of $5 \sqrt{2}$ is ..............

Similar Questions

Find $g.c.d.$ of $210$ and $55$ by Euclid's algorithm.

Simplify: $\frac{\sqrt{4-\sqrt{7}}}{\sqrt{8+3 \sqrt{7}-2 \sqrt{2}}}$

State whether the following rational number has a terminating decimal expansion or not. If it has a terminating decimal expansion,find it: $\frac{29}{343}$

Find : $\sqrt{7+2 \sqrt{10}}$

Express $156$ as a product of primes.

Vedclass Test Series

Exam Paper Generator

Online Exam Module