
OQ x
QP y

sin( ) 

OP 1
OP 1
cos( )  x
sin( )  y
cos( ) 
x  cos 
y  sin 

y  sin 

x  cos 

tan  
TR1.6 - Trigonometry: Circular Functions
sin 
cos
Page 1 of 7
June 2012
x  cos 63o
y  sin 63o
TR1.6 - Trigonometry: Circular Functions
Page 2 of 7
June 2012
sin 330o
360
330
30
330
(360  30)

330
y  sin 30
30
30

y  sin 330
sin 330
sin 30
sin 330
sin 30
sin 30
sin 330

1
2
1
2
sin  360      sin 
TR1.6 - Trigonometry: Circular Functions
Page 3 of 7
June 2012

0    90 
 90    180

 180    270 
 270    360 
50
50
cos
135
135
sin 
sin135
135o
tan 335
tan 
sin      sin 

cos     cos 

tan      tan 
TR1.6 - Trigonometry: Circular Functions
Page 4 of 7
June 2012
sin(225 )  sin(180  45 )   sin(45 )  
2
2
tan(135 )  tan(180  45 )   tan(45 )  1
sin(390 )  sin(360  30 )  sin(30 )  0.5
sin(60 )   sin(60 )  
3
2
cos(60 )  cos(60 )  0.5
sin   0.3
0    360

sin 

sin   0.3
180    180  17.46
  sin 1 0.3
 162.54
  17.46
sin   0.3
  17.46
  162.54
TR1.6 - Trigonometry: Circular Functions
Page 5 of 7
June 2012
sin  o  0.9
0    360

sin 
sin   0.9
sin   0.9
  sin 1 0.9
  64.16
180  
360  
 180  64.16

 360  64.16

sin 330
cos 210
cos90
sin(120 )
tan 300
cos 315
sin   0.25
tan   0.8
cos  0.4
cos  0.4
tan   1.5
cos  0.3






TR1.6 - Trigonometry: Circular Functions
sin(30 )
cos180
0    360
0    360
180    180
180    180
0    360
0    360
Page 6 of 7
June 2012
3
2
 3


3
2
TR1.6 - Trigonometry: Circular Functions
2
2
Page 7 of 7
June 2012