Question

Rationalise √7-√5


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Answer 1

Answer:

(√7-√5) * (√7+√5)

we are using the conjugate of √7-√5

by using (a+b) *(a-b) =a²-b²

(√7) ²-(√5) ²

7-5=2

Step-by-step explanation:

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Answer 2

7-5=2 ok this is final answer