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Trig Identities

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kamofeha's version from 2016-01-21 02:06

Section 1

Question Answer
Half Angle for sin^2(x)(1 - cos(2x) ) / 2
Half Angle for cos^2(x)(1 + cos(2x) ) / 2
Double angle sin(2x)2sin(x)cos(x)
Pythag Ident for sec^2(x)tan^2(x) + 1
Pythag Ident for csc^2(x)cot^2(x) + 1
memorize

Section 2

Question Answer
Anti-D for sec xln | sec x + tan x |
Anti-D for tan xln | sec x |
Anti-D for csc xln | csc x + cot x |
Anti-D for cot xln | sin x |
D of sec xsec x tan x
D of csc x-csc x cot x
D of cot x-csc^2 x
memorize