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What is the general solution to the equation? tanθ=2cosθtanθ

 Mar 16, 2020
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Write this as tanθ - 2cosθtanθ = 0  or tanθ(1 - 2cosθ) = 0

 

So, either tanθ = 0  or  1 - 2cosθ = 0

 

Can you take it from here?

 

These might help:

 

 Mar 16, 2020
edited by Alan  Mar 16, 2020

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