5442004
| Question | Answer |
| Trig | Trig |
| Inverse of sine | Arcsine sin^-1 |
| Inverse of cosine | Arccosine, cos^-1 |
| Inverse of tangent | Arc tangent, tan^-1 |
| Cosec | 1/sin |
| Sec | 1/cos |
| Cot | 1/tan Cos/sin |
| Tan | Sin/cos |
| Sin2A | 2sinAcosA |
| Cos2A | (CosA)^2+(sinA)^2 2(cosA)^2 - 1 1 - (sinA)^2 |
| Tan2A | 2tanA/1-(tanA)^2 |
| asin+-bcos | Rsin(0+-a) |
| acos+-bsin | Rcos(0-+a) |
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