HW for Friday (A) and Monday (F)

This homework clearly takes a backseat to any family plans you have between Wednesday and Friday.  A-block:  See also the previous post, if time permits.

1.  For those of you who have little or no trig background:

See me if you're confused about sine (sin), cosine (cos), and tangent (tan).  Look up these values on your calculator:

sin 0
sin 30
sin 45
sin 90
cos 0
cos 30
cos 45
cos 90

Chat with me about SOH-CAH-TOA if you are confused at all.

2.  Go to this website:

http://graphsketch.com/

Under "enter graph equations", type in:

sin(x)

When you hit plot (or return), the graph will emerge above.  To change the size of the graph, play around with the limits.  For a regular sine graph, the y-limits are -1 to 1.  The x-limits are whatever you want them to be, but note that the default units are radians (not degrees).  Recall that 2pi (radians) equals 360 degrees.

Play around with the graphing program.  It's fun!

3.  Finally, come to class with a definition of a WAVE.