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[Post New]16 Aug 2007 21:31:03 IST
    Subject: Re:derivation of sine/cosine/tan/exponential series required
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iitkgp_bipin (6544)

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Olaaa!! Perrrfect answer. 1114  bad job dude!! I dont approve of this answer! 1  [1603 rates]
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You can derive the series by using Taylor series expansion :

f(x+h) = f(h) + x.f'(h) + (x2/2!)f''(h) + (x3/3!)f'''(h) + ......

Put h=0 i.e. series expansion about x=0.

f(x) = f(0) + x.f'(0) + (x2/2!)f''(0) + (x3/3!)f'''(0) + ......

Apply this for f(x) = sinx, you'll get :

sinx = x - x3/3! + .......

Similarly you can apply it for other functions.
Bipin Kumar Dubey
Chemical Dept.
IIT Kharagpur

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