Ta có: \(\cot x=2\Rightarrow x\approx26,57^\circ\)
\(\Rightarrow\tan x\approx\tan26,57^\circ=0,5\)
\(\Rightarrow\sin x\approx\sin26,57^\circ=0,43\)
\(\Rightarrow\cos x\approx\cos26,57^\circ=0,89\)
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