29. If log2 logz loga x = 1, then t...
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29. If log2 logz loga x = 1, then the value of x is (b) 49 (c) 49 (d) none of these

JEE/Engineering Exams
Maths
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( log _{2} log _{3} log _{7} x=1 ) ( log _{3} log _{4} x=2 ) ( log _{3} log _{4} x=log _{3} 9 ) ( log _{4} x=9 ) ( log _{4} x=log _{4} 49 ) ( frac{x=4^{9}}{x}=(C) )
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