February 25, 2017

Homework Help: Trig

Posted by sally on Saturday, April 17, 2010 at 5:58pm.

A. Find simpler, equivalent expressions for the following. Justify your answers.
(a) sin(180 + è) (b) cos(180 + è) (c) tan(180 + è)
B. Show that there are at least two ways to calculate the angle formed by the vectors
[cos 19, sin 19] and [cos 54, sin 54].

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