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Trig Identities
| Term | Definition |
|---|---|
| sin(θ) | 1/csc(θ) |
| cos(θ) | 1/sec(θ) |
| tan(θ) | 1/cot(θ) |
| csc(θ) | 1/sin(θ) |
| sec(θ) | 1/cos(θ) |
| cot(θ) | 1/tan(θ) |
| Pythagorean sin/cos | cos^2(x)+sin^2(x)=1 |
| Pythagorean tan/sec | 1+tan^2(x)=sec^2(x) |
| Pythagorean cot/csc | cot^2(x)+1=csc^2(x) |
| Quotient- tan(θ) | sin(θ)/cos(θ) |
| Quotient- cot(θ) | cos(θ)/sin(θ) |
| sin(π/2-θ) | cos(θ) |
| cos(π/2-θ) | sin(θ) |
| tan(π/2-θ) | cot(θ) |
| csc(π/2-θ) | sec(θ) |
| sec(π/2-θ) | csc(θ) |
| cot(π/2-θ) | tan(θ) |
| sin(-θ) | sin(-θ) |
| cos(-θ) | cos(θ) |
| tan(-θ) | tan(-θ) |
| csc(-θ) | csc(-θ) |
| sec-θ) | sec(θ) |
| cot(-θ) | cot(-θ) |
Created by:
soham23
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