The number of distinct real roots of \left|\begin{array}{c}\sin \\\x & \cos x & \cos x \ \cos x & \sin \\\x & \cos x \ \cos x & \cos x & \sin \\\x|\end{array} in the interval [\frac{-\pi}{4}, \frac{\pi}{4}] is

COMEDK Exam 2018 Solved Paper

Question : 158 of 180

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The number of distinct real roots of |

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