Determine the direction where the function below decrease most rapidly at the point (1, 1, 1). f (x, y, z) = ln(xy) + ln(yz) + ln(xz) [-1,0,0] O [1,1,1] O[-2,1,3]¹/√14 O [-1,-1,-1]¹/√√3

Q: I also Need help with part D please

A: The correlation coefficient is 0.8137.

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