# Using a Calculator (sin, cos, tan) Worksheets

Using a Calculator to Find the Trig Values: sin, cos, and tan? Calculators can be a big help if you are solving complex mathematical calculations. However, we cannot forget that calculator is only a tool and its there to make our job easier. Thus, it will not help us to learn the basic principles of trigonometry. However, you should keep a prerequisite step in mind before you start solving trigonometric equations. The mode of the angle should be in degrees or radians, depending on the type of angle in your question. Now, let’s look at the steps which ca help you solve the trigonometric values. Let's assume you have a question cos⁡ 30/sin 45 . First, we check the form angle measurement. Since, both are in degree form, we can move further. The next step is to check the value of cos 30. You can just push the cos button, type 45 and then press the equal button. The result you will get is √3/2. Now, you can find the value of sin45. You can just push the sin button, type 30 and then press the equal button. The result you will get 1/2. The final step is to divide both answers, (√3/2)/(1/2). The result is √3. The calculator is especially helpful when you have angles in decimal form.

• ### Basic Lesson

Guides students through using a calculator to determine sin and tan. Example: 1. Press the sin button 2. Then press 24 3. Then = 4. One should get 0.406736643 5. Rounding the obtained value to 2 decimal places, one gets 0.41

• ### Intermediate Lesson

Demonstrates the concept of sin and cos.

• ### Independent Practice 1

A really great activity for allowing students to understand the concepts of the Using a Calculator (sin, cos, tan).

• ### Independent Practice 2

Students use Using a Calculator (sin, cos, tan) in 20 assorted problems. The answers can be found below.

• ### Homework Worksheet

Students are provided with 12 problems to achieve the concepts of Using a Calculator (sin, cos, tan).

• ### Skill Quiz

This tests the students ability to understand Using a Calculator (sin, cos, tan).