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1.the graph of y=3x^4-16x^3+24x^2+48 is concave down for
A.x0 C.x< -2 or x> -2/3 D.x2 E.2/3
人气:267 ℃ 时间:2020-04-08 19:19:52
解答
1.the graph of y=3x^4-16x^3+24x^2+48 is concave down for
A.x0 C.x< -2 or x> -2/3 D.x2 E.2/3
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