題目 Problem It is known that 2x3+y3=5xy2x^3+y^3=5xy2x3+y3=5xy. Determine the value of dy/dx\mathrm{d}y/\mathrm{d}xdy/dx when (x,y)=(1,2)(x,y)=(1,2)(x,y)=(1,2). (10%)(10\%)(10%) 解答