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Arc Tangent Squared

  • Thread starter l46kok
  • Start date
  • #1
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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 thats squared??
 

Answers and Replies

  • #2
vela
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Sure. Why not?
 
  • #3
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so [arctan(3)]^2 = arctan(3) * arctan(3)

?
 
  • #4
vela
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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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