Mathematics

Mathematics

Problem

For 0<x<π20< x<\dfrac{\pi}{2}, which inequality is valid? a) x<sin⁡x<tan⁡xx< \sin x< \tan x b) sin⁡x<tan⁡x<x\sin x< \tan x< x c) sin⁡x<x<tan⁡x\sin x< x< \tan x d) sin⁡x<x<cos⁡x\sin x< x< \cos x

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