Question

Rationalise the denominator 2/√7 , 1(√3+1) and 3√2/√7
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Answer 1

Answer:

1.2/√7*√7/√7=2√7/7

2.1/√3+1*√3-1/√3-1=3-2√3+1

3.3√2/√7*√7/√7=42/7

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