+0

+2
59
2
+28

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
0

tan(x)^2 + 2*tan(y)^2 = 12.

Apr 4, 2020
#2
+28
+1

Thanks for the answer, but I really want to know how to solve it.

Apr 5, 2020