Mathematics

Mathematics

Problem

Determine the range of the polynomial k(x)=−4x4k(x)=-4x^{4}. a) [0,∞)[0,\infty) b) (−∞,0)(-\infty,0) c) (−∞,0](-\infty,0] d) (−∞,−4](-\infty,-4]

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