Question

(a+b)^2+(a-b)^2/a^2++b^2

Answer 1

{(a+b)²+(a-b)²}/a²+b²

(a²+b²+2ab+a²+b²-2ab)/a²+b²

(a²+b²+a²+b²+2ab-2ab)/a²+b²

(2a²+2b²)/a²+b²

2(a²+b²)/a²+b²

2

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Answer 2

Answer:

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