June 18th, 2008, 03:18 PM
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| Member | | Join Date: Sep 2007 Location: Colorado
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Quote:
Originally Posted by TKHunny  Didn't I tell you before to memorize certain trigonometric values? It seems you have not fulfilled this assignment.
sin(-3pi/4) = -sin(3pi/4) = -sin(pi/4) = ???  ?
cos(5pi/6) = -cos(pi/6) = ???  ?
Now what?
Note: If you're using LaTeX, feel free to put a slash in front of those "pi"s. Excellent results can be obtained. | Is this correct? |