Solving for Theta (Trigonometry) without using GDC

timer Asked: Mar 10th, 2016

Question description

tan^2(θ)−1=0,   restrictions: [0,2π]

This question may use double angle formulae, I'm not quite sure. I believe that we have to use the special triangles, the unit circle, and the CAST rule because this is not a calculator question. Answers in radians, and if you could show as many steps as possible that would be great. Thank you!

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