If \frac{\log _{9} 9}{b^{2}} \cdot \frac{\log b}{c-a} \cdot \frac{\log – InterviewSolution

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1.	If \frac{\log _{9} 9}{b^{2}} \cdot \frac{\log b}{c-a} \cdot \frac{\log c}{a \cdot b}, -then-prove that a^{2} \cdot b^{2} \cdot c^{2}=1
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