5. If 3* = 47-1, then x = [JEE-Adva...
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5. If 3* = 47-1, then x = [JEE-Advanced 2013, 4, (-1)] (A) 2log, 2 2 log: 2-1 (B) 2-log23 (C) 1-log, 3 2log, 3 (D) 2log, 3-1

JEE/Engineering Exams
Maths
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( 3^{x}=frac{4^{x}}{4} quad geqslantleft(frac{4}{3}right)^{x}=4 ) ( log _{2}left(frac{4}{3}right)^{x}=log _{2} 45 ) ( x log _{x}^{4 / 3}=frac{log (4)}{log _{2} 4-log _{2} 3}=frac{2}{2-log _{3}} ) ( x=frac{2}{4} )
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