Question 720477
Find the exact value of the trigonometric functions.
a. 13pi/2=6&#960;+&#960;/2=&#960;/2
This is like rotating 3 revolutions (6&#960;) counter-clockwise +&#960;/2

b.(-11pi/2)=5&#960;+&#960;/2=4&#960;+&#960;+&#960;/2=&#960;/2
This is like rotating 2 revolutions (4&#960;) clockwise+&#960;+&#960;/2