ƚ@ @ P   .  @@ &  & MathTypePSymbol ww 0w}f-2 3(ySymbol ww 0w}f-2 )ySymbol ww 0w}f-2 (ySymbol ww 0w}f-2  )yTimes New Romanww 0w}f-2  4y2  3y2 Y2y2 3y Times New Romanww 0w}f-2 2ySymbol ww 0w}f-2  -y2 +y2 -yTimes New Romanww 0w}f-2 xy2 1xy2 xy & "System}f !-