Express in terms of the ratio 'cot' — task. Mathematics State Board, Class 10.

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Show \(\cos x\) in terms of \(\cot x\).

\(\frac{\sqrt{\cot^2 x - 1}}{\cot x}\)
\(\frac{\cot x}{\sqrt{\cot^2 x - 1}}\)
\(\frac{\sqrt{\cot^2 x + 1}}{\cot x}\)
\(\frac{\cot x}{\sqrt{\cot^2 x + 1}}\)

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