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Question: If \(\frac{\pi}{4}\cot\theta = \frac{\pi}{2} - \frac{\pi}{4}\tan\theta\), then the general value of\...

If π4cotθ=π2π4tanθ\frac{\pi}{4}\cot\theta = \frac{\pi}{2} - \frac{\pi}{4}\tan\theta, then the general value oftanθ+cotθ=2\Rightarrow \tan\theta + \cot\theta = 2is.

A

\Rightarrow

B

sin2θ=1=sinπ2θ=nπ+π4\sin 2\theta = 1 = \sin\frac{\pi}{2} \Rightarrow \theta = n\pi + \frac{\pi}{4}

C

2sin2θ3sinθ2=02\sin^{2}\theta - 3\sin\theta - 2 = 0

D

\Rightarrow

Answer

sin2θ=1=sinπ2θ=nπ+π4\sin 2\theta = 1 = \sin\frac{\pi}{2} \Rightarrow \theta = n\pi + \frac{\pi}{4}

Explanation

Solution

\Rightarrow

tan2θ=3\tan^{2}\theta = 3 \Rightarrowθ=nπ±π3\theta = n\pi \pm \frac{\pi}{3}

\Rightarrow sec2θtan2θ=1\sec^{2}\theta - \tan^{2}\theta = 1