Derive the uncertainty delta A for the function A(x,y,z) = x^3 * y + ln(z), where x = 3.1 (plus or minus) 0.2, y = 3.6 (plus or minus) 0.3, z = 2.61 (plus or minus) 0.47. Which measurement contributes most to the relative error

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A: This is a problem of Numerical Analysis.

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A: Topic  - differentiation by parts

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