Question

Can anyone solve this problem

Answer 1

Answer:

To solve this question, we will have to rationalize the denominator.

Rationalizing the denominator:-

7+ root 5/ 7- root 5

using the identity (a+b)(a-b)= a square - b square, we will multiply the numerator and denominator by 7+ root 5

= (7+ root 5)(7+ root 5)/ (7- root 5)(7+ root 5)

=54+14 root 2/ 7 square - root 5 square

54+ 14 root 2/ 44