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Let f = sin(yz) + ln(x) a) Find the derivative of F at P(1,1,Pi) in the...

Let f = sin(yz) + ln(x)

a) Find the derivative of F at P(1,1,Pi) in the direction of v = i+j-k

b) Find a vector u in the direction where f increases the fastest

c) Find a nonzero vector w with the property that the derivative of f in the direction of w at P(1,1,pi) is 0

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