Using the Inverse Trigonometric Functions - Concept

Concept Concept (1)

In a problem where two trig functions are not inverses of each other (also known as "inverse trigonometric functions", (1) replace the inverse function with a variable (which represents an angle), (2) use the definition of the inverse function to draw the angle in the unit circle and identify one coordinate, (3) find the missing coordinate (use Pythagorean Theorem, for example), (4) use the coordinates to find the missing value.

Sample Sample Problems (2)

Need help with "Using the Inverse Trigonometric Functions" problems? Watch expert teachers solve similar problems to develop your skills.

Using the Inverse Trigonometric Functions - Problem 1
Problem 1
How to prove an identity that involves sin^-1(x) and cos^-1(x).
Using the Inverse Trigonometric Functions - Problem 2
Problem 2
How to find an algebraic expression that is equivalent to sec^2(tan^-1(x)).