Suppose that a curve is given by the equation  x3−y3= 40xy which defines  y  as function(s) of  x Find an expression for  dy/dx  in terms of  x  and  y   A) dy/dx = 3x2/ 40x+3y2 B) dy/dx = x2-y/ x+y2 C) dy/dx = 3x2 - 40y / 40x + 3y2

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