Question

Find value of
x2+1/x2-1​

Answer 1

Answer:

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Answer 2

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Given:

$\frac{( {x}^{2} + 1)}{ ({x}^{2} - 1)}$

To find:

Simplify

Answer:

$\frac{( {x}^{2} + 1)}{( {x}^{2} - 1) }$

Using the formula, a²-b²=(a+b)(a-b)

Here, a=x and b=1

$= > \frac{( {x}^{2} + 1) }{(x + 1)(x - 1)}$