When to answer using radians or degrees

• Conversion — To obtain an angle in radians, multiply the angle in degrees by /180. Degrees-to-radians conversion tools are available over the Internet. You can also ask your instructor to suggest one.
• Grading — Your answer will be graded correct as long as it is algebraically and trigonomically equivalent to the program's answer, even if it looks different.

For example, if a question asks you to find the horizontal component of a vector of length 10 that's directed 30 degrees above the horizontal, Mastering will accept "10*cos(/6)", but not "10*cos(30)". Use the pi symbol to avoid possible rounding errors.

To insert the pi symbol in the answer box, use either of the following methods:

• Enter \pi from your keyboard.
  To view a keyboard on your mobile device, open the Letters menu on the toolbar.
• Select from the Symbols menu.
  
  

• Conversion — To obtain an angle in degrees, multiply the angle in radians by 180/. (Use the pi symbol in the answer box to avoid possible rounding errors.) Radians-to-degrees conversion tools are available over the Internet. You can also ask your instructor to suggest one.
• Grading — Your answer will be graded correct as long as it's algebraically and trigonomically equivalent to the program's answer, even if it looks different.

For example, if a question asks you to find the horizontal component of a vector of length 10 that's directed 30 degrees above the horizontal, Mastering accepts "10*cos(30)", but not "10*cos(/6)".

To insert the pi symbol in the answer box, use either of these methods:

• Enter \pi from your keyboard.
  To display an answer keyboard on your mobile device, open the Letters menu on the toolbar.
• Select from the Symbols menu.