Misc 1 - Prove 2cos pi/13 cos 9pi/13 cos 3pi/13 cos 5pi/13
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Dec 16, 2024
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Example 22 - Prove cos2 x + cos2 (x + pi/3) + cos2 (x - pi/3)
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Misc 1 - Find cos-1 (cos 13pi/6) - Chapter 2 Class 12 NCERT
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Ex 3.3, 9 - Prove cos (3pi/2+x) cos (2pi + x)[cot (3pi/2 - x)
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Misc 27 - Find derivative: x2 cos pi/4 / sin x - Class 11
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Ex 3.3, 1 - Prove sin2 pi/6 + cos2 pi/3 - tan2 pi/4 = -1/2
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Ex 2.1, 12 - Find value of cos-1 (1/2) + 2 sin-1 (1/2) - Ex 2.1
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Ex 3.3, 2 - Prove 2 sin2 pi/6 cosec2 7pi/6 cos2 pi/3 = 3/2
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