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Question Number 1417 by 123456 last updated on 30/Jul/15

sin (sin x)≤cos (cos x)  x∈[0,2π)

$$\mathrm{sin}\:\left(\mathrm{sin}\:{x}\right)\leqslant\mathrm{cos}\:\left(\mathrm{cos}\:{x}\right) \\ $$$${x}\in\left[\mathrm{0},\mathrm{2}\pi\right) \\ $$

Commented by Rasheed Ahmad last updated on 02/Aug/15

What to do with it? Is it an inequation  to solve? Or is it an identity to  prove?

$${What}\:{to}\:{do}\:{with}\:{it}?\:{Is}\:{it}\:{an}\:{inequation} \\ $$$${to}\:{solve}?\:{Or}\:{is}\:{it}\:{an}\:{identity}\:{to} \\ $$$${prove}?\: \\ $$

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