Question

how to solve the problem

Answer 1

ANSWER

$\frac{ - 7}{17}$


SOLUTION

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FORMULA USED*


$\tan(x + y) = \frac{ \tan(x ) + \tan(y) }{1 - \tan(x) + \tan(y) }$


$\tan( \frac{\pi}{4} ) = 1$

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

$\tan( { \tan }^{ - 1} x) = x$

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SOLUTION


LOOK IN ATTACHMENT

Answer 2

above answer is correct....✌✌