Question

Please answer this question

Answer 1

Step-by-step explanation:

by rationalysing denominator

1/(3-√8)=3+√8

1/(√8-√7)=√8+√7

1/(√7-√6)=√7+√6

1/(√6-√5)=√6+√5

1/(√5-2)=√5+2

3+√8-√8+√7-√7+√6-√6+√5-√5

=>3+2=5