Prove That: 2 Cos 5 π 12 Cos π 12 = 1 2 - Mathematics | Shaalaa.com
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Misc 1 - Find cos-1 (cos 13pi/6) - Chapter 2 Class 12 NCERT
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Question 5 - Show sin-1 12/13 cos-1 4/5 tan-1 63/16 = pi
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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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