Prove that cos(2????) = 2cos2(????) − 1 for any real number ????.

1 answer:

Over [174]3 years ago

6 0

Answer:

Sure

Step-by-step explanation:

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Step-by-step explanation:

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fomenos

Answer:

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morpeh [17]

Answer:

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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