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If the operation \(\emptyset\) is defined for all positive integers \(x\) and \(w\) by \(x \emptyset w =\dfrac{2^x}{2^w}\) then \((3\emptyset 1) \emptyset 3=?\)
A. 2
B. 4
C. 8
D. 16
E. 32
OA A
If the operation \(\emptyset\) is defined for all positive integers \(x\) and \(w\) by \(x \emptyset w =\dfrac{2^x}{2^w}\) then \((3\emptyset 1) \emptyset 3=?\)
A. 2
B. 4
C. 8
D. 16
E. 32
OA A
