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Trigonometry question proof

Trigonometry question proof-example-1
User TGH
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1 Answer

4 votes

Answer: 2

Explanation:

We can manipulate the left-hand side as follows.


\tan \theta+\cot \theta\\\\=(\sin \theta)/(\cos \theta)+(\cos \theta)/(\sin \theta)\\\\=(\sin^(2) \theta+\cos^(2) \theta)/(\cos \theta \sin \theta)\\\\=(1)/(\cos \theta \sin \theta)\\\\=(1)/((1)/(2) sin 2\theta)\\\\=\boxed{2} \text{ cosec} 2\theta

User Rado Buransky
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