Prove the following: cos4x+cos3x+cos2xsin4x+sin3x+sin2x=cot3x - Mathematics | Shaalaa.com
Prove the following: cos4x+cos3x+cos2xsin4x+sin3x+…
Sep 17, 2024
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Ex 3.3, 22 - Prove cot x cot 2x - cot 2x cot 3x - cot 3x cot x
Ex 3.3, 22 - Prove cot x cot 2x - cot 2x cot 3x - cot 3x cot x
Dec 16, 2024
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Example 16 - Prove cos 7x cos 5x / sin 7x - sin 5x = cot x
Example 16 - Prove cos 7x cos 5x / sin 7x - sin 5x = cot x
Dec 16, 2024
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Ex 3.3, 16 - Prove that cos 9x - cos 5x / sin 17x - sin 3x
Ex 3.3, 16 - Prove that cos 9x - cos 5x / sin 17x - sin 3x
Dec 13, 2024
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Ex 3.3, 19 - Prove sin x sin 3x / cos x cos 3x = tan 2x
Ex 3.3, 19 - Prove sin x sin 3x / cos x cos 3x = tan 2x
Dec 13, 2024
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Example 22 - Prove cos2 x + cos2 (x + pi/3) + cos2 (x - pi/3)
Example 22 - Prove cos2 x + cos2 (x + pi/3) + cos2 (x - pi/3)
Dec 16, 2024
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Ex 3.3, 20 - Prove sin x - sin 3x / sin2 x - cos2 x = 2 sin x
Ex 3.3, 20 - Prove sin x - sin 3x / sin2 x - cos2 x = 2 sin x
Dec 13, 2024
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Ex 3.3, 17 - Prove sin 5x sin 3x / cos 5x cos 3x = tan 4x
Dec 13, 2024
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Ex 3.3, 21 - Prove cos⁡ 4x cos⁡ 3x cos⁡ 2x / sin⁡ 4x
Dec 13, 2024
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Example 17 - Prove sin 5x - 2 sin 3x + sin x / cos 5x - cos x
Dec 16, 2024
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Misc 5 - Prove sin x + sin 3x + sin5x + sin 7x = 4 cos x
Dec 16, 2024
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Misc 2 - Prove (sin 3x + sin x) sin x + (cos 3x - cos x)
Dec 16, 2024
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Misc 7 - Prove sin 3x + sin2x - sin x = 4 sin x cos x/2 cos 3x/2
Dec 16, 2024
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