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Find the Local and absolute extrema of f(x) on the interval [-1,2] and give a sketch of the graph if:

f(x) = [ 1 / (1 + |x|) ] + [ 1 / (1 + |x - 1|) ]

I am confused about the absolute value parts. I know they're the versions inside the absolute value signs when >0 and the negative of the inside when < 0 but I'm not sure how to start this derivative.

Help would be appreciated. Thanks.

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# Homework Help: Trying to derive this but has multiple absolute values

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