Question

Ratinalize the deominator :7-3√2/7 + 3√2

Answer 1

$\huge\boxed{Answer}$

(7 - 3√2) / (7 + 3√2)

From rationalising the denominator

=> (7 - 3√2)² / (7 + 3√2)(7 - 3√2)

=> (49 + 18 - 42√2) / (7)² - (3√2)²

=> (67 - 42√2) / (49 - 18)

=> (67 - 42√2) / 31