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  • 3 years ago

Prove that the function given by f (x) = cos x is (a) strictly decreasing in (0, π) (b) strictly increasing in (π, 2π), and (c) neither increasing nor decreasing in (0, 2π).

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    • 3 years ago
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    The Function is Strictly increasing in the intervel (x , y) if x < y and f(x) < f(y)

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