Rationalize the denominator 1/√7-√2
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1/√7 -√2
(√7 +√2)/( √7 -√2)( √7 +√2)
(√7 +√2)/7 -2
(√7 +√2)/5
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Answer:
Step-by-step explanation:
1/√7-√2 × √7 +√2 / √7+√2
√7+√2 / (√7)²+(√2)²
= √7+√2 / 7-2
= √7+√2 / 5
hence rationalised denominator is 5
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