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amelia-matthews_6096f1249f6af

amelia-matthews_6096f1249f6af

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amelia-matthews_6096f1249f6af
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  • That's really about as simplified as it gets, but we can write it in a different form. Recall that cos(x + y) = cos(x)cos(y) - sin(x)sin(y). cos(a + π/3) = cos(a)cos(π/3) - sin(a)sin(π/3) = cos(a)/2 - sin(a)(√3)/2 = (cos(a) - sin(a)√3)/2. …