Inverse Trigonometric Functions and Desmos

The video tutorial introduces inverse trigonometry, explaining the concepts of inverse sine, cosine, and tangent, also known as arc sine, arc cosine, and arc tangent. It emphasizes the use of Desmos, a free calculator app, to solve inverse trigonometry problems in both radians and degrees. The tutorial provides a practical example, calculating the inverse sine of 0.98, and demonstrates how to switch between radians and degrees using Desmos. The video concludes by highlighting the importance of understanding the mode required for solving problems.

What is another name for the inverse sine function?

• Arc cotangent

• Arc tangent

• Arc cosine

• Arc sine

Which of the following is NOT a way to refer to inverse trigonometric functions?

• Inverse cotangent

• Arc sine

• Inverse cosine

• Arc tangent

What is the principal value of arc sine of 0.98 in radians?

• 0.98

• 1.57

• 1.37

• 0.78

Which tool is recommended for calculating inverse trigonometric functions?

• Desmos

• Mathway

• Scientific calculator

• Graphing calculator

How do you ensure Desmos is in radians mode?

• Check the green indicator in the toolbox

• Switch to degree mode

• Enter the value in degrees

• Use the default settings

What is the first step to find the inverse sine of a value using Desmos?

• Enter the value directly

• Switch to degree mode

• Ensure you are in radians mode

• Use a different calculator

What is the value of arc sine of 0.98 in degrees?

• 90.0

• 45.0

• 60.0

• 78.5

What is the inverse sine of 0.98 rounded to two decimal places?

• 1.57

• 1.37

• 0.98

• 0.78

What is the difference in the result when switching from radians to degrees in Desmos?

• The result is halved

• The result is doubled

• No difference

• The result is converted to degrees

What is the main purpose of using Desmos for inverse trigonometric calculations?

• All of the above

• To simplify the process

• To verify results

• To avoid manual calculations