Chapter 12.1, Problem 20WE

To determine

Sketch each angle in standard position , for n = 0 , 1, 2 and -1.

  $-30°+n\cdot 360°$

Explanation of Solution

Given:

The angle is :

  $-30°+n\cdot 360°$

n = 0 , 1, 2 and -1.

Calculation:

n = -1:

  $-30°+n\cdot 360°=-30°+(-1)\cdot 360°=-390°$

  

n = 0:

  $-30°+n\cdot 360°=-30°+0\cdot 360°=-30°$

  

n = 1:

  $-30°+n\cdot 360°=-30°+1\cdot 360°=330°$

  

n = 2:

  $-30°+n\cdot 360°=-30°+2\cdot 360°=690°$