#### Math - 2019-20

# T.7 - Calculator

T.7The student willdeterminethe value of any trigonometric function and inverse trigonometric function.

*Adopted: 2016*

### BIG IDEAS

### UNDERSTANDING THE STANDARD

· The trigonometric function values of any angle can be found by using a graphing utility.

· The inverse trigonometric functions can be used to determine angle measures whose trigonometric function values are known.

· Calculations of inverse trigonometric function values can be related to the triangular definitions of the trigonometric functions.

· Trigonometric functions are not invertible, because they are periodic. Domain restrictions on trigonometric functions are necessary in order to determine the inverse trigonometric function.### ESSENTIALS

**The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to**

·
T.7_{1}** Use**
a graphing utility to **determine** the
trigonometric function values of any angle in either degrees or radians.

·
T.7_{2}** Define**
inverse trigonometric functions.

·
T.7_{3}** Determine**
angle measures by using the inverse trigonometric functions when the
trigonometric function values are given.

### KEY VOCABULARY

*Updated: May 29, 2018*