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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
$\cot x - \cot 2x + \cot 3x - \cot 3x \cdot \cot 2x \cdot \cot x$ equals:
Solution
We know the trigonometric identity: $\cot A \cot B \cot C - \cot A - \cot B - \cot C = 0$ ⟹ $\cot A - \cot B + \cot C - \cot A \cot B \cot C = 0$ Hence, the given expression equals $1$.Online Test Series, Information About Examination,
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