
Kenneth S. answered 02/25/16
Tutor
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(62)
Let's cut to the chase: I know this subject & how to teach YOU
cos 0 = 1 so arctan 1 means "what angle has its tangent function valued at 1? Answer is 45 degrees, or better yet, pi/4.


Kenneth S.
By now (at this point in a Trig course), you should know cosine and sine of many special angles.
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02/25/16
Brian T.
I'm in calculus and I never took trig thanks
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02/27/16

Kenneth S.
You might have a lot of trouble in Calculus if you're not on top of Trigonometry.
I am curious about the Advisement that led you into that situation.
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02/27/16
Raphael D.
02/25/16