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In what direction does ?(?,?)= ln(9?^2+6?^2) increase most rapidly at (2,5)? (Enter a unit vector.)

In what direction does ?(?,?)= ln(9?^2+6?^2) increase most rapidly at (2,5)?

(Enter a unit vector.)

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Answer #1

In this question first we find directional derivative and then find the direction in which function increases rapidly. Hope you understand the solution.

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