JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

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Application +4 | -1

The solution set of

\left( {2\cos x - 1} \right)\,\,\left( {3 + 2\,\cos x} \right) = 0

in the interval

0 \le x \le 2\;\pi

, is

View answer and explanation

Correct option: B

\left\{ {\frac{\pi }{3},\,\,\frac{{5\;\pi }}{3}} \right\}

Option B (

\left\{ {\frac{\pi }{3},\,\,\frac{{5\;\pi }}{3}} \right\}

) is correct because these are the only solutions to the equation within the given interval.

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