Question: 2. Use the small increments formula to estimate the change in z= x 2 y 4 - x 6 +4y when x increases from 1

2. Use the small increments formula to estimate the change in

z=x2y4-x6+4y

when

  1. x increases from 1 to 1.1, and y remains fixed at 0
  2. x remains fixed at 1, and y decreases from 0 to -0.5

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