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How is (\cot x) written in terms of (\sin x) and (\cos x)?

Answer and explanation

Correct answer: \(\frac{\cos x}{\sin x}\)

By the quotient identity, \(\cot x=\frac{\cos x}{\sin x}\), so option B is correct. Option A is the formula for \(\tan x=\frac{\sin x}{\cos x}\), not for \(\cot x\). Note that \(\cot x\) is defined only when \(\sin x\ne0\). Exam tip: in \(\tan x\), sine is in the numerator and cosine in the denominator; for \(\cot x\), the order is reversed.

Related tags

Trigonometric IdentitiesQuotient IdentitiesCotangentSineCosineTrigonometric Functions And Their PropertiesTrigonometric FunctionsMathematics

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