007A Sample Final 3, Problem 5

Calculate the equation of the tangent line to the curve defined by $x^{3}+y^{3}=2xy$ at the point, Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (1,1).}