honors precalculus and trigsevillaj.weebly.com/uploads/7/7/8/4/7784014/3.4.pdf · find the exact...

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Page 1: Honors PreCalculus and Trigsevillaj.weebly.com/uploads/7/7/8/4/7784014/3.4.pdf · Find the exact value of cos 150. Use identity (18) with £ = 150 and thus, with x = 1 + cos 300
Page 2: Honors PreCalculus and Trigsevillaj.weebly.com/uploads/7/7/8/4/7784014/3.4.pdf · Find the exact value of cos 150. Use identity (18) with £ = 150 and thus, with x = 1 + cos 300