Question

Solve I need it.
See attachment.​

Answer 1

Step-by-step explanation:

The answer is so simple that...u just need to take the conjucate of this..

like,

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

=>

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

=>

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