Title Angles of Trigonometric Functions and Graph of Sine an
     Title: Angles of Trigonometric Functions and Graph of Sine and Cosine  The purpose of this assessment is to help you determine whether you have a clear u  trigonometric functions.  Trigonometric functions are used to model data and a variety of physical phenomenon astronomy, surveying, highway design, GPS, and aerial photography. Refer to the  of Trigonometry\" and answer the following questions to complete this lab:  Find the exact value of:  sin 300degree  tan (405degree)  cot(13pi/3)  If sin var theta  
  
  Solution
1)sin300o
=sin(360o-60o)
=-sin60o
=-(3)/2
b)tan(405)o
=tan(360o+45o)
=tan45o
=1
c)cot(13/3)
=cot(4 +(/3))
=cot(/3)
=1/3
2) sinv<0 ,tanv<0
v lie 4th quadrant

