Abby B.
ICM
6-1 Graphs of
the Trigonometric Functions
-There are 6 main trigonometric functions:
the sine, cosine, cosecant, secant, tangent, and cotangent graphs.
-The
differences between the graphs are where they intersect the x and y axis. Also,
each graph has its own unique shape. 
Practice Problems:
1. Use the graph of the tangent function and find the values of Ø, when tanØ = 1.
If the interval is -180º < Ø < 180º, Ø can be -180º, 0º, or 180º. This is because the
tangent graph has a period of 180º. Therefore the values of Ø can be 0º + 180kº, or
180kº, where k is any integer.
2. Graph the cosine curve in the interval -720° < Ø < 360°.
1. Find the value of cosine Ø for Ø = -720°, -630°, -540°, -450°, -360°, -270°,
-180°, -90°, 0°, 90°, 180°, 270°, ; and 360°.
2. Plot the points from the ordered pairs.
(-720°, 1), (-630°, 0), ( -540°, -1), (-450°, 0), ( -360°, 1), (-270°,0),
(-180°, -1), (-90°, 0), (0°, 1), (90°, 0), (180°, -1), (270°, 0) and (360°, 1).
GOOD JOB!!!!
"Nurture your mind with great thoughts, for you will never go any higher than you think."
-Benjamim Disraeli
Using courage and having self-discipline can help you to achieve your goals!!!!