Question 5:
Prove that: sin x + sin 3x + sin 5x + sin 7x = 4 cos x cos 2x sin 4x
Answer
Latest Govt Job & Exam Updates:
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Question 5:
Prove that: sin x + sin 3x + sin 5x + sin 7x = 4 cos x cos 2x sin 4x
Answer
Latest Govt Job & Exam Updates: