What is the formula of trigonometry?
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Most commonly used formulas in trigonometry
Sine (sin): sin(θ) = opposite side / hypotenuse
Cosine (cos): cos(θ) = adjacent side / hypotenuse
Tangent (tan): tan(θ) = opposite side / adjacent side
Pythagorean Theorem: c^2 = a^2 + b^2,
where,
- c is the length of the hypotenuse and
- a and b are the lengths of the other two sides.
Inverse trigonometric functions
There are inverse functions for each of the three main trigonometric functions (sin, cos, tan) that can be used to find an angle in a right triangle given the lengths of the sides. For example, the inverse sine (sin^-1) is often written as arcsin.
These are just a few important formula for trigonometric the many formulas used in trigonometry.
The subject also involves concepts like radians, degrees, and unit circle, which are important to understand when working with trigonometry.