In trigonometry, every function has an inverse and so is tangent. This operation inverses the function so the tangent becomes inverse tangent through this operation. Then the inverse tangent is used to find the degree value of an angle in the triangle(right-angled) when the sides opposite to and adjacent to the angles are known.
So each trigonometric function have an inverse.
The inverse of these trigonometric functions are as follows:
- inverse sine
- inverse cosine
- inverse tangent
- inverse secant
- inverse cosecant
- inverse cotangent
The inverse of Tangent is also called as arctan or tan-1
The arctan Formula is:
Tangent = Opposite / Adjacent
If in a triangle, opposite side to angle A is 1 and the adjacent side is sqrt(3)
So tan-1 (1/sqrt 3) = A
Register at BYJU’S to learn more trigonometrical concepts.