題目 6. When x3+y3+z3−3xyz=1x^3+y^3+z^3-3xyz=1x3+y3+z3−3xyz=1, derive ∂z/∂x\partial z/\partial x∂z/∂x and ∂z/∂y\partial z/\partial y∂z/∂y. 解答
