I need help solving this problem, im not sure what to do with the . The formula isQuote:

If , find the value of the directional derivative at the point in the direction given by the angle .

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- Feb 26th 2009, 06:31 PMvietDirectional DerivativeQuote:

If , find the value of the directional derivative at the point in the direction given by the angle .

- Feb 27th 2009, 05:29 AMJester