AMC 10A 2004 Problem 2

Past Contests AMC 10 AMC 10A - 2004
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1

For any three real numbers a, b, and c, with b \neq c, the operation ¶ is defined by

¶(a, b, c)=\dfrac{a}{b \quad c}

What is ¶(¶(1,2,3), ¶(2,3,1), , ¶(3,1,2)) ?

Answer Choices
A. \dfrac{1}{2}
B. \dfrac{1}{4}
C. 0
D. \dfrac{1}{4}
E. \dfrac{1}{2}