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Question: use a combination of the forward and reverse singlestep taylor...

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Use a combination of the forward and reverse single-step Taylor Series approximations to evaluate the 1st derivative of f(x) = A . erp(b、x) . You will need to expand out to the 3rd derivative term to have the 1st term of the error. For this derivation, use the actual equation instead of the f' shorthand for the derivative terms. This is a “central difference” approximation, and should provide you with a 2nd order approximation of f'(t). Explain why your answer is 2nd order, and show all steps in the derivation of the 1st derivative approximation.

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