Question

rationalize the denominator
$21 \ \sqrt{3}$
​

Answer 1

Answer:

7√3

Step-by-step explanation:

The rationalizing factor of √3 is √3 itself..

So,

21/√3 -multiply numerator and denominator by √3

We get 21√3/3

which gives us 7√3..

hope this helps you

please mark this answer Brainliest