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Let x and y be two real numbers such that \(2\sin x \sin y+3\cos y+6\cos x\sin y=7.\)

Find \(\tan^2x+2\tan^2y.\)

 Apr 4, 2020
 #1
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tan(x)^2 + 2*tan(y)^2 = 12.

 Apr 4, 2020
 #2
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Thanks for the answer, but I really want to know how to solve it.

 Apr 5, 2020

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