The inverse trigonometric functions do the same thing as the inverse trigonometric relations. Still, when an inverse function is used, because of its restricted range, it only gives one output per input--whichever angle lies within its range. Inverse Trigonometric Functions plays a vital role in calculus to find the various integrals. Inverse trigonometric functions are also used in other areas such as science and engineering. In this chapter, students will get knowledge of the restrictions on domains and ranges of trigonometric functions, which ensure the existence of their inverses and observe their behaviour through graphical representations, along with examples. In this exercise, students can get knowledge of trigonometric functions such as sine, cosine, tangent, cot, cosec, sec. The chapter also teaches Graphs of inverse trigonometric functions Elementary properties of inverse trigonometric functions.