Solved 1. prove that cos 2x = 2 cos x – 1. 2. prove that Solved which of the following functions is represented by 2x transcribed
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Ex 2.1, 5 - Find principal value of cos-1 (-1/2) - Inverse
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Ex 2.1, 5 - Find principal value of cos-1 (-1/2) - Inverse
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Ex 2.1, 12 - Find value of cos-1 (1/2) + 2 sin-1 (1/2) - Finding princ
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