Let \( * \) be a binary operation, on the set of all non-zero real numbers, given by \( a * b=\f...
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2Let \( * \) be a binary operation, on the set of all non-zero real numbers, given by \( a * b=\frac{a b}{5} \) for all \( a, b \in \mathbf{R}-\{0\} \). Find the value of \( x \), given that \( 2 *(x * 5)=10 \)
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