Question: a. Show that (x) = x/(x + 1) increases on every open interval in its domain. b. Show that (x) = x 3 + 2x

a. Show that ƒ(x) = x/(x + 1) increases on every open interval in its domain.

b. Show that ƒ(x) = x3 + 2x has no local maximum or minimum values.

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