A) 1
B) 2
C) 3
D) 0
Correct Answer: B
Solution :
(b): Given expression \[=lo{{g}_{xyz}}(xy)+lo{{g}_{xyz}}\left( yz \right)+lo{{g}_{xyz}}(zx)\] \[=lo{{g}_{xyz}}(xy\times yz\times zx)=lo{{g}_{xyz}}{{(xyz)}^{2}}\] \[=21o{{g}_{xyz}}\left( xyz \right)=2\times 1=2.\]
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