Chemical Engineering > GATE 2019 > Vector Calculus
If x, y and z are directions in a Cartesian coordinate system and i, j and k are the respective unit vectors, the directional derivative of the function u(x, y, z) = x2 - 3yz at the point (2,0,-4) in the direction (i + j - 2k)/β6 is ______ (rounded off to two decimal places).
Correct : 6.53
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