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estiersofoyan
@estiersofoyan
November 2021
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Напишите решение с объяснением: упростить выражение соs4a+sin^2 2a
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kirichekov
Verified answer
Cos4α+sin²2α=cos(2*(2α))+sin²2α=cos²2α-sin²2α+sin²2α=
cos²2α
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Answers & Comments
Verified answer
Cos4α+sin²2α=cos(2*(2α))+sin²2α=cos²2α-sin²2α+sin²2α=cos²2α