Solving Arc Tangent Squared: tan(2x) - 3cot(2x) = 0

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SUMMARY

The equation tan(2x) - 3cot(2x) = 0 can be simplified to [tan(2x)]^2 - 3 = 0, leading to the solution [tan(2x)]^2 = 3. By substituting u = tan(2x), the equation transforms into u^2 = 3, which can be solved for u and subsequently for x. The discussion clarifies that the concept of Arc Tangent squared is valid, as [arctan(3)]^2 can be expressed as arctan(3) multiplied by itself.

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Homework Statement


tan(2x) - 3 cot (2x) = 0


Homework Equations



Trigonometry Knowledge.

The Attempt at a Solution



tan(2x) - 3cot(2x) = 0
tan(2x) - 3/tan(2x) = 0

[tan(2x)]^2 - 3 = 0

[tan(2x)]^2 = 3


Is there such thing as Arc Tangent that's squared??
 
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Sure. Why not?
 
so [arctan(3)]^2 = arctan(3) * arctan(3)

?
 
What you wrote is true, but it has nothing to do with how you'd solve the problem.

Try setting u=tan 2x, so your equation becomes u2=3. Then solve for u, and then solve for x.
 

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