Prove That: (Sin 3x + Sin X) Sin X + (Cos 3x – Cos X) Cos X = 0 - CBSE (Arts) Class 11 - Mathematics
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Prove that: (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0
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Solution Prove That: (Sin 3x + Sin X) Sin X + (Cos 3x – Cos X) Cos X = 0 Concept: Signs of Trigonometric Functions.