Question: Find the points on the surface la + 3y + 32 = 1 at which the tangent plane is parallel to the plane -3x +


Find the points on the surface la + 3y + 32 = 1 at which the tangent plane is parallel to the plane -3x + ly - 4z = 0. (-6sqrt(3/7) sqrt(3/21) -4sqrt(3/21) ) and
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