Use Taylor's series to expand cos x and estimate true relative errors as when 1 to 4 terms in the series are added.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Use Taylor's series to expand cos x and estimate true relative errors as when 1 to 4 terms in the series are added.

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TaylorSeriesTaylorseriesoffunctionfxataisdefinedas:fx=fa+f'a1!x-a+f''a2!x-a2+f'''a3!x-a3+ApplytheTaylorFormulaFindthederivativesoffx=cosx,leta=0Takethepointx=0andplugitintocosx ; =cos0=11+ddxcosx01!x+d2dx2cosx02!x2+d3dx3cosx03!x3+

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