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What will be the final result of cos4x? Is this 2sin2x?How

What will be the final result of cos4x? Is this 2sin2x?How

Grade:11

1 Answers

BALAJI ANDALAMALA
askIITians Faculty 78 Points
5 years ago
cos4x = cos^22x-sin^22x = 1-2sin^22x

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