Question

For the following functions. Determine the location of all critical point(s) and their nature. f(x)=1⁄3x3 –2x2...

For the following functions. Determine the location of all critical point(s) and their nature.

f(x)=1⁄3x3 –2x2 –21x+5
Please provide proof of the critical points as and when required.

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