27. If log3 [log2 (log3 x)]=1 then ...
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27. If log3 [log2 (log3 x)]=1 then x= (a) 6561 (b) 2187 (c) 729 (d) 243

JEE/Engineering Exams
Maths
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( operatorname{sig} 3left[operatorname{seg} 2left[log _{3} xright]right]=1 ) ( left.log _{2} log _{3} xright]=3 ) [ begin{aligned} x &=9^{3} =& 243 end{aligned} ]
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