1.

The number of distinct real values of x in the interval [−π4,π4]such that ∣∣∣∣sinxcosxcosxcosxsinxcosxcosxcosxsinx∣∣∣∣=0 is

Answer» The number of distinct real values of x in the interval [π4,π4]such that
sinxcosxcosxcosxsinxcosxcosxcosxsinx
=0
is


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