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The number of distinct real roots of ∣∣∣∣sin xcos xcos xcos xsin xcos xcos xcos xsin x∣∣∣∣=0 in the interval −π4≤x≤π4 is (a) 0 (b) 2 (c) 1 (d) 3 |
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Answer» The number of distinct real roots of ∣∣ (a) 0 |
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