If $a \star b = \dfrac{\left(\dfrac{1}{b} - \dfrac{1}{a}\right)}{(a - b)}$, express $3 \star 11$ as a common fraction.
Question:
If $a \star b = \dfrac{\left(\dfrac{1}{b} - \dfrac{1}{a}\right)}{(a - b)}$, express $3 \star 11$ as a common fraction.
Answer:
Let's think step by step.

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\frac{1}{33}
If $a \star b = \dfrac{\left(\dfrac{1}{b} - \dfrac{1}{a}\right)}{(a - b)}$, express $3 \star 11$ as a common fraction.
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