Show that the function f (x) = x⁷ + 8 x⁵ + 1 is increasing function for all values of x.

Question

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Anonymous · Accepted Answer

Here f (x) = x⁷ + 8 x⁵ + 1
∴ f ' (x) = 7x⁶ + 40 x⁴ ≥ 0 ∀ x
∴ f (x) is increasing function for all values of x.

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