ƚB`W  .1  @&e & MathTypeSymbol-2 G:2 :2 :2 5 +2 ;+2 Q=2  -2 ]2 +2 =Times New Roman-2 tu2 Z m2  t2 `m2 y2 =y2 t2  m2  t2 m2 \x2  x Times New Roman-2 BF u2 Mu2  uTimes New Roman- 2  sin 2 cos 2  sin 2 cos Times New Roman-2 BW02 0 & "Systemn-