Trigonometry Examples

$\frac{\tan (\frac{π}{8} - x) + \tan (\frac{π}{8} + x)}{1 - \tan (\frac{π}{8} - x) \tan (\frac{π}{8} + x)}$

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$\frac{\tan (\frac{π}{8} - x) + \tan (\frac{π}{8} + x)}{1 - \tan (\frac{π}{8} - x) \tan (\frac{π}{8} + x)}$