If \( 1, \log _{y} x, \log _{z} y,-15 \log _{x} z \) are in A.P., t...
If \( 1, \log _{y} x, \log _{z} y,-15 \log _{x} z \) are in A.P., then
(A) \( z^{3}=x \)
(B) \( x=y^{-1} \)
(C) \( z^{-3}=y \)
(D) \( x=y^{-1}=z^{3} \)
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