Sin Cos Tan Reference Sheet

Math 180 - USE THIS TO STUDY FOR YOUR TEST ON 5.1-5.3

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1) SHOW THE TABLE OF VALUES FOR THE SINE, COSINE AND TANGENT OF THE 5 REFERENCE ANGLES

0........... ............... ............... ................ ....................

sin a

cos a

tan a

2) Write the definitions of the trigonometric functions using the triangle approach.

sin x =

cos x =

tan x =

3) a) Write the reciprocal identities.

b) Write the quotient identities.

c) Write the basic Pythagorean identity. Where is this coming from? Label the three sides of the triangle in the

unit circle.

4) Write the signs of the SIX trigonometric functions in the following graphs:

5) Write the two equations that relate the period and w for the functions y = sin wx and y = cos wx.

6) a) Write the relationships between degrees and radians.

b) Write the relationships between degrees, minutes and seconds

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