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Let f"(x)=4x^3 -2x and let f(x) have critical values -1, 0, and 1.?

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1 Answer

Relative maximum means f''(x) < 0.

f''(-1) = -4+2 < 0

f''(0) = 0

f''(1) = 4-2 > 0

Answer: a) -1