A) 1
B) 2
C) 3
D) 0
Correct Answer: B
Solution :
(b): Given expression \[={{\log }_{xyz}}(xy)+{{\log }_{xyz}}(yz)+{{\log }_{xyz}}(zx)\] \[={{\log }_{xyz}}\left( xy\times yz\times zx \right)={{\log }_{xyz}}{{\left( xyz \right)}^{2}}\] \[=2\,\text{lo}{{\text{g}}_{xyz}}(xyz)=2\times 1=2.\]
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