1.

The number of distinct real roots of the equation ∣∣∣∣sinxcosxcosxcosxsinxcosxcosxcosxsinx∣∣∣∣=0, in the interval −π4≤x≤π4 is

Answer»

The number of distinct real roots of the equation
sinxcosxcosxcosxsinxcosxcosxcosxsinx
=0,
in the interval π4xπ4 is



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