This Calculus 3 video tutorial explains how to find the directional derivative and the gradient vector. The directional derivative is the product of the gradient vector and the unit vector. To find the gradient vector, you need to find the partial derivatives of f with respect to x, y, and maybe z for a 3 variable function.
Lines & Planes - Intersection: [ Ссылка ]
Angle Between Two Planes:
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Distance Between Point and Plane:
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Chain Rule - Partial Derivatives:
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Implicit Partial Differentiation:
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Directional Derivatives:
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Limits of Multivariable Functions:
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Double Integrals:
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Local Extrema & Critical Points:
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Absolute Extrema - Max & Min:
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Lagrange Multipliers:
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Triple Integrals:
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2nd Order - Differential Equations:
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Undetermined Coefficients:
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Variation of Parameters:
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Final Exams and Video Playlists:
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Full-Length Videos and Worksheets:
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