M1120 Class 3 .edu

sin2x = 2sinx cosx cos2x = cos2 x sin2 x cos2x = 2cos2 x 1 cos2x = 1 2sin2 x: This gives sin2 x = 1 cos2x 2 cos2 x = 1 + cos2x 2 These will be available on the formula sheets. No need to memorize, but make sure you practice with them! Dan Barbasch M1120 Class 3 Aug. 30, 2011 7 / 16 ................
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