You know that we have
- Hypotenuse – the longest side
- Base – third side
- Perpendicular – the other side opp to the angle in a right triangle
Similarly, the six trigonometric functions are:
- Sine
- Cosine
- Secant
- Cosecant
- Tangent
- Cotangent
Now let’s study the basic trigonometry formulas.
The Trigonometric properties/Formulas are given below:
Property | Identity / Property | Mathematical value |
Sin a | \(\frac{opposite}{hypotenuse}\) | |
Cos a | \(\frac{adjacent}{hypotenuse}\) | |
Tan a | \(\frac{opposite}{adjacent}\) | \(\frac{sina}{cos a }\) |
Sec a | \(\frac{hypotenuse}{adjacent}\) | \(\frac{1}{cosa}\) |
Cosec a | \(\frac{hypotenuse}{opposite}\) | \(\frac{1}{sina}\) |
Cot a | \(\frac{adjacent}{opposite}\) | \(\frac{cos a }{sin a } = \frac{1}{tan a}\) |
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