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sin(x)
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cos(x)
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Trig Identities
basic trig identities
| Question | Solution |
|---|---|
| sin(x) | 1/csc(x) |
| cos(x) | 1/sec(x) |
| tan(x) | 1/cot(x) |
| csc(x) | 1/sin(x) |
| sec(x) | 1/cos(x) |
| cos2(x) + sin2(x) | 1 |
| cos2(x) | 1-sin2(x) |
| sin2(x) | 1-cos2(x) |
| 1 + tan2(x) | sec2(x) |
| tan2(x) | sec2(x)-1 |
| cot2(x)+1 | csc2(x) |
| cot2(x) | csc2(x)-1 |
| sin(2x) | 2sin(x)cos(x) |
| cos(2x) | cos2(x)- sin2(x) |
Created by:
rachsusann