What is the numeric value for this expression: (?Y/?Y)_Z [2(?Z/?Z)_(Y,X)+(?X/?Y)_X/3]^(-1)?


A. 0.43
B. 0.5
C. 0
D. 1
E. 2


A. Incorrect. Recheck the variables for the last term inside the brackets.
B. Correct. Making the simplifications needed results in this constant value.
C. Incorrect. The derivative outside the brackets is not a zero value.
D. Incorrect. Check your calculations for constant coefficients.
E. Incorrect. Check your calculations for exponents you may have missed.

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