9) Find the directional derivative of f=x^yz+4xz^at (1,-2,2)
in (2i-j-2k) direction.
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Step-by-step explanation:
Find the directional derivative of φ = x2yz + 4xz2 at (1, - 2 , - 1 ) in the direction 2i - j - 2k. Correct answer is '12.34'.
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