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Introduction of trignometry all formulae |
| Answer» SinA = P / HCosA = B / HTanA = P / BCotA = B / PCosecA = H / PSecA = H/BSin2A + Cos2A = 1Tan2A + 1 = Sec2ACot2A + 1 = Cosec2AIn order to find a relationship between various trigonometric identities, there are some important formulas:1. TanA = SinA / CosA2. CotA = CosA / SinA3. CosecA = 1 / SinA4. SecA = 1 / CosA Thank you?? | |