hw18 - and cos . 2. Using only that cos( + ) = cos cos -sin...

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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: and cos . 2. Using only that cos( + ) = cos cos -sin sin and the even and odd properties of sine and cosine, show that cos( - ) = cos cos + sin sin ....
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