Math, asked by biswajit2j, 5 months ago

Express cos 2A + cos 2B + cos 2C + cos 2 (A + B + C) as the product of three cosines

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Answered by daniyamuzafferkazi

0

Answer:

x lol lol lol lol 2nd lesson is there a 2nd lesson is there a 2nd main 1st one of maths teacher

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