Relation for the functional moduli mx, my, and mz.

1.	Relation for the functional moduli mx, my, and mz.
A.	mz = mxmy(1/[mx-my])
B.	mz = mx+my*(1/[mx-my])
C.	mz = mxmy(1/[mx+my])
D.	mz = mx*my+(1/[mx+my])
Answer» D. mz = mx*my+(1/[mx+my])

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