Answers edited by Christian S.
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How do you verify #csc^2(theta)(1cos^2(theta))=1#?

How do you simplify #arctan (tan 3pi/4)#?

How/Why do you get the solutions to a trigonometry equation with multiple angles?

How do you simplify #cotB + (sinB / (1+cosB))#?

How do you find Tan^1(1) without a calculator?

How do you do simplify #cos [sec ^1 (5)]#?

How do you simplify #(1+tan^2x)/(1+cot^2x)#?