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D is x = 1/2 f(x) = 3x4 10x2 +2x 3 is concave down at which of the following values of x? Ox=1 Ox=1 Ox=2

D is x = 1/2

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f(x) = 3x4 10x2 +2x 3 is concave down at which of the following values of x? Ox=1 Ox=1 Ox=2 'l/'7 D

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