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Exponent Product from Logarithmic Relations

1000BeginnerAlgebraLogarithmic Equations

National Math Olympiad 2013 - First Round · 2013

What is the value of the product $x \cdot y$ if $3^x = a$ and $a^y = 81$? (A) 4 (B) 3 (C) 12 (D) 0 (E) 1
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