Question

$x = \frac{ \sqrt{a {}^{2} +b {}^{2} } + \sqrt{a {}^{2} - b {}^{2} } }{ \sqrt{a {}^{2} + b {}^{2} } - \sqrt{a {}^{2} - b {}^{2} } } \: then \: prove \: that \: b { }^{2} = \frac{2a {}^{2} x}{x {}^{2} + 1 }$
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Answer 1

Step-by-step explanation:

Please see this photo.