Unformatted text preview: θ and cos θ . 2. Using only that cos( α + β ) = cos α cos βsin α sin β and the even and odd properties of sine and cosine, show that cos( αβ ) = cos α cos β + sin α sin β ....
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This note was uploaded on 12/27/2011 for the course MAC 1114 taught by Professor Gentimis during the Spring '11 term at University of Florida.
 Spring '11
 Gentimis
 Trigonometry

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