Find the direction of maximum decrease at p


Solve the below:

Q: Let f(x) = e^(x+y+3z

a.) Find the directional derivative at P(-2,2,-1) in the direction of Q(18,-2,4)

b.) Find the direction of maximum decrease at P. (your answer does not have to be unit vector.) What is the maximum rate of decrease?

 

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Mathematics: Find the direction of maximum decrease at p
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