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Slowww
@Slowww
July 2022
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СРОЧНО cosa-sinb представить в виде произведения
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Indentuum
Cos(a) - sin(b) = sin(π/2 - a) - sin(b) = 2sin(π/4 - (a+b)/2)cos(π/4 - (a-b)/2)
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