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Ragnfreed
@Ragnfreed
November 2021
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Вычислите: (sin106 - sin14)/1-2cos²22
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sfominok
(2cos(106+14)/2sin(106-14)/2/(1-2cos²22)=2cos60sin46/(-cos44)=2×1/2×sin(90-44)/(-cos44)=cos44/(-cos44)=-1
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