Exam 11: Extension F: Partial Derivatives

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Suppose that over a certain region of space the electrical potential V is given by Suppose that over a certain region of space the electrical potential V is given by   Find the rate of change of the potential at   in the direction of the vector  Find the rate of change of the potential at Suppose that over a certain region of space the electrical potential V is given by   Find the rate of change of the potential at   in the direction of the vector  in the direction of the vector Suppose that over a certain region of space the electrical potential V is given by   Find the rate of change of the potential at   in the direction of the vector

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D

Find the equation of the normal line to the given surface at the specified point. Find the equation of the normal line to the given surface at the specified point.

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Find the directional derivative of the function Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis. at the point Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis. in the direction of the unit vector that makes the angle Find the directional derivative of the function   at the point   in the direction of the unit vector that makes the angle   with the positive x-axis. with the positive x-axis.

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Find equations for the tangent plane and the normal line to the surface with equation Find equations for the tangent plane and the normal line to the surface with equation   at the point  at the point Find equations for the tangent plane and the normal line to the surface with equation   at the point

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If If   use the gradient vector   to find the tangent line to the level curve   at the point  use the gradient vector If   use the gradient vector   to find the tangent line to the level curve   at the point  to find the tangent line to the level curve If   use the gradient vector   to find the tangent line to the level curve   at the point  at the point If   use the gradient vector   to find the tangent line to the level curve   at the point

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