Find the directional derivative of at in the direction of ? I'm not sure exactly what to do. I have differentiated the equation, which gives me with and from this point I have no clue on what to do.
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Originally Posted by lllll Find the directional derivative of at in the direction of ? I'm not sure exactly what to do. I have differentiated the equation, which gives me with and from this point I have no clue on what to do. The directional derivative is given by the formula: where is a unit vector in the given direction. In your case and . Now substitute the given point.
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