Question: Simplify the expression. sin 14x sin 13x + sin x O Cos 7x COs 6x COs 6x cos 7x O sin 6x sin 7x O

Simplify the expression. sin 14x sin 13x + sin x O

Cos 7x COs 6x COs 6x cos 7x O sin 6x sin

Simplify the expression. sin 14x sin 13x + sin x O Cos 7x COs 6x COs 6x cos 7x O sin 6x sin 7x O sin 13x sin 6x O sin 7x sin 6x

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