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Where will the terminal side of \( \frac{41\pi}{6} \) lie?

Answer and explanation

Correct answer: Second quadrant

Subtracting three complete revolutions, where \(2\pi=\frac{12\pi}{6}\), gives \(\frac{41\pi}{6}-\frac{36\pi}{6}=\frac{5\pi}{6}\). Now \(\frac{5\pi}{6}=150^\circ\), which lies between \(\frac{\pi}{2}\) and \(\pi\); hence its terminal side lies in the second quadrant. The fourth quadrant contains angles between \(\frac{3\pi}{2}\) and \(2\pi\). Exam tip: reduce a large angle by subtracting multiples of \(2\pi\) before identifying its quadrant.

Related tags

Trigonometric FunctionsAnglesTerminal SideQuadrantsCoterminal AnglesMathematicsClass 12 Mcq

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