Rationalise the denominator 7-3√2 by 7+3√2
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Answer:According to the question we have to rationalize the denominator 7+3root2
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Step-by-step explanation:
(7 - 3√2)/(7 + 3√2)
= {(7 - 3√2) × (7 - 3√2)}/{(7 + 3√2) × (7 - 3√2)}
= (7 - 3√2)² / {(7)² - (3√2)²}
= (49 + 18 - 42√2) / (49 - 18)
= 7.60 / 31
= 0.245
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