Question

3+root8 ÷ 3- root8what is the answer ​

Answer 1

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3+√8/3-√8

Rationalising the denominator

3+√8/3-√8×3+√8/3+√8

3(3+√8)+√8(3+√8)/(3)²-(√8)²

=9+3√8+3√8+8/9-8

=9+8+6√8/1

Denominator = 1

It is a rational number

Answer :- 17+6√8

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