Rationalise the denominator and simplify: 2 / (√7 + √5)

Type: MCQ • Marks: 1

A. √7 + √5

B. (√7 - √5)/2

C. √35

D. √7 - √5

Explanation

2(√7 - √5) / ((√7)^2 - (√5)^2) = 2(√7 - √5) / (7 - 5) = 2(√7 - √5)/2 = √7 - √5.

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