Ответы на вопрос:
(8sinπ/65*cosπ/65*cos2π/65*cos4π/65*cos8π/65*cos16π/65*cos32π/65)/(sinπ/65)=(4sin2π/65* cos4π/65*cos8π/65*cos16π/65*cos32π/65)/(sinπ/65)==(2sin4π/65* cos4π/65*cos8π/65*cos16π/65*cos32π/65)/(sinπ/65)==(sin8π/65* cos8π/65*cos16π/65*cos32π/65)/(sinπ/65)==(sin16π/65* cos16π/65*cos32π/65)/(2*sinπ/65)==(sin32π/65* cos32π/65)/(4*sinπ/65)=(sin64π/65)/(8*sinπ/65)= =(sin(π-π/65)/(8*sinπ/65)=(sinπ/65)/(8*sinπ/65)=1/8
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