SOLUTION: how do you find all possible solutiions of 3tanx * cosx = -5cosx?

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Question 286247: how do you find all possible solutiions of 3tanx * cosx = -5cosx?
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
3tanx * cosx = -5cosx


3tanx * cosx + 5cosx = 0

cosx(3tanx + 5) = 0


cosx = 0 or 3tanx + 5 = 0

x = pi/2+2pi*n or x = -1.03037 + 2pi*n