JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

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The critical points of the function

f\left( x \right) = 2{\sin ^2}\left( {\frac{x}{6}} \right) + \sin \left( {\frac{x}{3}} \right) - \left( {\frac{x}{3}} \right)

Whose coordinates satisfy the inequality

{x^2} - 10 < - 19.5x

View answer and explanation

Correct option: B

6\pi

Option B (

6\pi

) is correct because it is a critical point of the function that satisfies the given inequality.

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