Let S be the surface given by the equation x^3+y^3-xz=5. What is the equation of the tangent plane at point (1,1,-4). a) x+y-4z=12 b) 7x+3y-z=14 c) 7x+3y-z=10

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Q: Find the tangent planes to the surfaces given by the equations z = 7x^2 - 12x - 5y^2 and xyz^2 = 2…

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