PHY1501 Impédance complexe Z e j(  +  /2) = cos(  +  /2) + j sin(  +  /2) = -sin(  ) + j cos(  ) = j (cos(  ) + j sin(  )) = j e j(  ) = d/d  e j(  ) e j(  -  /2) = cos(  -  /2) + j sin(  -  /2) = sin(  ) - j cos(  ) = -j (cos(  ) + j sin(  )) = -j e j(  ) = 1/j e j(  ) = ∫ e j(  ) d 