

MCQOPTIONS
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1. |
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. | \[x={{y}^{-1}}={{z}^{3}}\] |
E. | All the above |
Answer» F. | |