Thread: Differentiation of trigonometry equations
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Old June 27th, 2009, 12:28 PM
greghunter greghunter is offline
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Can you tell me how you got from cos2x to -2sin2x?
I know that cosx = -sinx but the 2x confused me
Last edited by greghunter; June 27th, 2009 at 12:39 PM.
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