# Inverse Functions- Calculator Worksheets

How to Calculate Inverse Functions with a Calculator It easy to calculate and process functions in the calculator; however, finding the answers to inverse values of those functions can still be a bit tricky even with a calculator. For many functions, we can still find the inverse values after pressing the shift button and then using those functions. For example, all the trigonometric functions have an inverse value when they are used after pressing the shift button. Similarly, for all the log functions, we can just use them after pressing the shift button to get their inverse values. But for those functions that do not provide the facility of using them after pressing the shift button, we can calculate their inverse values by simply finding their multiplicative reciprocals in the calculator. We can find their multiplicative reciprocals by simply dividing their final values from one and multiplying them with a negative one. This way, we can easily get their inverse.

• ### Basic Lesson

Guides students through using inverse sin and tan. Example: sin-1 0.38 1. Press the shift button 2. Then press the sin button 3. Then press .38 4. Then = 5. One should get 22.33368265 6. Rounding the obtained value to 2 decimal places, one gets 22.33

• ### Intermediate Lesson

Demonstrates the concept of inverse sin and cos.

• ### Independent Practice 1

A really great activity for allowing students to understand the concepts of this unit. Use a calculator to solve. Round to the nearest degree.

• ### Independent Practice 2

Students use a calculator to solve inverse functions in 20 assorted problems. The answers can be found below.

• ### Homework Worksheet

Students are provided with 12 problems to achieve the concepts of this unit.

• ### Skill Quiz

This tests the students ability with this skill.