Math, asked by kartikchampion8613, 4 months ago

What is the value of cos2x

Answers

Answered by rajeevr06
0

Answer:

cos2x = 2 {cos}^{2} x - 1 \:  \:  \: or \:  \:  \:  \\  =  1 - 2 {sin}^{2} x

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