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- Jan 22, 2008
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Hi everybody. Anyone with good trig skills, will you please help me on this problem. It's either so simple i cant see it, or something wrong with their answer:
Problem:
Cos ([Pi]+[301Pi/2])
Their Explanation:
Cos ([Pi]+[75*2Pi]+[Pi/2]) = Cos ([Pi]+[Pi/2]) = 0
I don't know what happened to [75*2Pi], and Cos([Pi]) = -1 & Cos ([Pi/2]) = 0, so -1+0 doesn't give me 0 either. If you could shed some light, much appreciated.
Problem:
Cos ([Pi]+[301Pi/2])
Their Explanation:
Cos ([Pi]+[75*2Pi]+[Pi/2]) = Cos ([Pi]+[Pi/2]) = 0
I don't know what happened to [75*2Pi], and Cos([Pi]) = -1 & Cos ([Pi/2]) = 0, so -1+0 doesn't give me 0 either. If you could shed some light, much appreciated.