#y times 2xcos(x^2) + sin(x^2) times dy/dx# = #x times e^ycos(e^y) times dy/dx + sin(e^y)#
#2xycos(x^2) + dy/dx times sin(x^2)# = #dy/dx times e^yxcos(e^y) + sin (e^y)#
#dy/dx sin (x^2) - e^ycos(e^y)# = #sin (e^y) - 2xycos(x^2)#
#dy/dx# = #(sin(e^y)-2xycos(x^2))/(sin(x^2)-e^yxcos(e^y))#