hw18 - θ and cos θ 2 Using only that cos α β = cos α...

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Name: MAC 1114 Homework 18 § 7.4 5 Show your work, if you’re not sure you’ve shown enough, try writing a few english sentences. Make sure you indicate what rule you are using in each step!! 1. Calculate tan θ exactly, when θ = 5 π 12 by first calculating sin
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Unformatted text preview: θ and cos θ . 2. Using only that cos( α + β ) = cos α cos β-sin α sin β and the even and odd properties of sine and cosine, show that cos( α-β ) = 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.

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