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Trig Identities
For math 141
equation | solution |
---|---|
sin^2(x) + cos^2(x) = | 1 |
tan^2(x) + 1 = | sec^2(x) |
1 + cot^2(x) = | csc^2(x) |
2sin(x)cos(x) = | sin(2x) |
cos^2(x) - sin^2(x) = | cos(2x) |
0.5(1-cos(2x)) = | sin^2(x) |
0.5(1+cos(2x)) = | cos^2(x) |
sin(pi/2-x) | cos(x) |
cos(pi/2-x) | sin(x) |
d/dx (ln|sec(x)| +C) | tan(x) |
d/dx (ln|sec(x)+tan(x)| +C) | sec(x) |