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What is \(\frac{\cosec \theta}{\cot \theta}\) equal to?

Answer and explanation

Correct answer: \(\sec \theta\)

Using \(\cosec\theta=\frac{1}{\sin\theta}\) and \(\cot\theta=\frac{\cos\theta}{\sin\theta}\),
\(\frac{\cosec\theta}{\cot\theta}=\frac{1/\sin\theta}{\cos\theta/\sin\theta}=\frac{1}{\cos\theta}=\sec\theta\). Hence, \(\sec\theta\) is correct. \(\tan\theta\) equals \(\frac{\sin\theta}{\cos\theta}\), so it is not the answer. Exam tip: rewrite reciprocal and quotient trigonometric ratios in terms of \(\sin\theta\) and \(\cos\theta\) before simplifying.

Related tags

Trigonometric FunctionsTrigonometric IdentitiesReciprocal IdentitiesAlgebraic SimplificationClass 11 MathematicsTrigonometric Functions And Their PropertiesMathematicsClass 12 Mcq

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