Don't waste time memorizing the derivates of sine and cosine..pic.twitter.com/6V30w9fG0Z
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This is a very interesting way of getting the derivatives of trigonometric functions using Euler's formula. I usually go about it in a different way by using the identities Cos x=(e^ix+e^-ix)/2 and sin x=(e^ix-e^-ix)/2i.pic.twitter.com/e9eIWQwahw
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Thanks for this. It also readily extends to integrals with no problem.pic.twitter.com/moDI1Od8gR
Thanks. Twitter will use this to make your timeline better. UndoUndo
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