Question

Trigonometry function

Answer 1

Answer:

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Answer 2

Answer:

$\frac{(1 - \cos(2x) )}{ \sin(2x) } = \tan(x) \\ lhs \: \: ..\frac{(1 - \cos(2x)) }{ \sin(2x) } \\ \frac{ 2{ \sin(x) }^{2} }{2 \sin(x) \cos(x) } \\ \ \frac{ \sin(x) }{ \cos(x) } \\ \tan(x) \\ rhs \\ proved$