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### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

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### 22 Cards in this Set

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• Back
 sin(x) = 1 / csc(x) cos(x) = 1 / sec(x) tan(x) = sin(x) / cos(x) csc(x) = 1 / sin(x) sec(x) = 1 / cos(x) cot(x) = cos(x) / sin(x) sin^2(x) + cos^2 (x) = 1 1 - sin^2(x) = cos^2(x) 1 - cos^2(x) = sin^2(x) tan^2(x) + 1 = sec^2(x) cot^2(x) + 1 = csc^2(x) sin(2x) = 2sin(x)cos(x) cos(2x) = cos^2(x) - sin^2(x) sin^2(x) = [ 1 - cos(2x) ] / 2 cos^2(x) = [ 1 + cos(2x) ] / 2 d/dx sin(x) = cos(x) d/dx cos(x) = -sin(x) d/dx tan(x) = sec^2(x) d/dx cot(x) = -csc^2(x) d/dx sec(x) = sec(x) tan(x) d/dx csc(x) = -csc(x) cot(x) More later. (maybe. I'm tired) Derp.