Question

rationalize the denominator1/root8+root7 . please send me fast please

Answer 1

1/(√8+√7)
=>> 1/(√8+√7)×(√8-√7)/(√8-√7)
=>> (√8-√7)/(8-7)
=>>(√8-√7)/1 =>>(√8-√7) is the answer.

Answer 2

In the third step identity is used. Please mark me as brainliest