Use the total differential dz to approximate the change in z as (x, y) moves from P to Q. Then use a calculator to find the corresponding exact change ?z (to the accuracy of your calculator).ln (xy2); P(5, -1), Q(4.95, -.99)
A. dz = 0.03; ?z = 0.0301510076
B. dz = -0.3; ?z = -0.301510076
C. dz = 0.3; ?z = 0.301510076
D. dz = -0.03; ?z = -0.0301510076
Answer: D
Mathematics
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