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Can you briefly explain how they work?Yes I am familiar
I meant can you explain how and why the first and second derivative tests for relative extrema work, i.e., the rationale behind them.find f^1(x) = 0 x('s)= critical numbers plus some points (a,b) or [a,b]
f(x,a,b) = extrema Larget # max smallest # min
Using f^2(x) for the critical #'s f2(x) > 0 then min and ect.