Saturday, June 1, 2019

calculus - Understanding Cauchy Mean Value Theorem

I got a hard time to understand the Theorem from Cauchy Mean Value Theorem. Could someone please to help me explain this?



Let I be an open interval and n be a natural number and suppose that the function f:IR has n derivatives. Suppose also that the point x0 in I:



f(k)(x0)=0 for 0kn1



Then, for each point xx0 in I, there is a point z strictly between x and x0 at which



f(x)=f(n)(z)n!(xx0)n




Then my homework is giving f(x)=(x2)5 with f(x0)=f(x0)=...=fn1(x0) with x0=2 and n=3, find all possible z to satisfy the Theorem above.

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