Trigonometric Functions and Angle Modes

The video tutorial explores trigonometric functions, starting with calculations in radian mode. It demonstrates using pi in calculations and finding exact radical answers. The tutorial then shows how to edit and recycle calculations for different trigonometric functions. It transitions to degree mode, performing similar calculations, and concludes with working backwards using inverse trigonometric functions, emphasizing the importance of understanding different modes.

What menu are we currently in when discussing trigonometric functions?

• Edit menu

• Settings menu

• Calculate menu

• Graph menu

What does the 'r' at the top of the screen indicate?

• Radian mode

• Scientific mode

• Degree mode

• Gradient mode

How is pi represented in the calculator?

• Next to the 1 key

• Above the X key

• Next to the 0 key

• Above the Y key

What is the exact radical answer for S of pi over 3?

• 1

• 3 over 2

• 2 over 3

• 1 over 2

Which trigonometric function is edited to calculate cosine of pi over 3?

• Cosine

• Secant

• Tangent

• Sine

What mode do we switch to for calculating trigonometric functions of 30 degrees?

• Gradient mode

• Degree mode

• Scientific mode

• Radian mode

What is the cosine of 30 degrees?

• 1

• 0.5

• √3/2

• 1/√3

What is the tangent of 30 degrees?

• 0.5

• 1/√3

• √3

• 1

What does 'd' stand for in angle modes?

• Decimal

• Gradient

• Degrees

• Radians

What does 'r' stand for in angle modes?

• Radians

• Degrees

• Gradient

• Radians per second