1.

If ax = by = cz and b2 = ac, then y is equals to

A. \(\frac{xz}{2(x-z)}\)
B. \(\frac{xz}{x+z}\)
C. \(\frac{xz}{2(z-x)}\)
D. \(\frac{2xz}{x+z}\)
Answer» E.


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