Compute the directional derivative of the following function at the indicated points in the given directions: I did this: But I'm not sure if this is right.
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But you are correct. Way to go.
, and when you differentiate it the 1/2 cancels with the 2 from the 2x (or 2y). So your answer is twice as big as it should be. Other than that, it looks correct.
I see, thanks.
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