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Let f be the function definedby f (x)=12x3 -4x.
(a)
Find the intervals on which / is increasing.
(b)
Find the x- and y-coordinatesof all relative ma:rimumpoints.
(c)
Find the x- and y-coordinatesof all relative minimum points.
(d)
Find the intervalson which/is concavedownward,
(e)
Using the information found in parts (a), O), (c), and (d), sketchthe graph of/on
the ares provided.