Inverse Trigonometric Functions
Inverse Trigonometric Functions

Trigonometric functions are not oneone and onto in their usual natural domain. Hence, they are not invertible.
They can be made oneone and onto (i.e., invertible) by restricting their domain. In this case, the
 Range of the inverse of trigonometric function is the proper subset of the domain of that trigonometric function.
 The branch of the inverse trigonometric function with the restricted range is called the Principal Value Branch.

There are 6 inverse trigonometric functio...
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