If and the general values of are in AP

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

If tan⁡(mθ)=tan⁡(nθ)\tan(m\theta)=\tan(n\theta) and the general values of θ\theta are in AP, then the common difference is (1) 1m−n\frac{1}{m-n} (2) πm+n\frac{\pi}{m+n} (3) πm−n\frac{\pi}{m-n} (4) None of these

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