GIF89a!,ڋ޼Y@AriTܴF~SɂO1vVP4RYPU._^uaʯ.e8^Y<>YYvt—cHt(hDȄG't h9)ɉʳ gc9Idz*f5ٙZJ+hKI\H5L{zHJ= v ><~V.:N{|=͞^^B*GxM a \2P||0Du|} QYqpOKa9,-*,whJ\**PRIN:X *]Z(ccϦlZm)̈́v 8 > ! MathType001B w=P(x,y)dx+Q(x,y)dy;