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Question Number 42673 by Tawa1 last updated on 31/Aug/18

Answered by OrestesDante last updated on 15/Sep/18

$$\frac{p}{q}=\frac{sin2\alpha +sin2\beta }{cos2\alpha +cos2\beta }$$$$\frac{2sin\left(\frac{2\alpha +2\beta }{2}\right)cos\left(\frac{2\alpha -2\beta }{2}\right)}{2cos\left(\frac{2\alpha +2\beta }{2}\right)cos\left(\frac{2\alpha -2\beta }{2}\right)}=\frac{p}{q}$$$$tan(\alpha +\beta )=\frac{p}{q}$$$$>>>>>>>>>>>>>>>>$$$$$$

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