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Set 4

Question 16

16

Number 16

Given an operation on the set of integers defined by the rule β(wxyz)=z(y+w)zx\beta(w \oplus x \ominus y \otimes z) = z(y + w) - \frac{z}{x}.

The value of β(1234)\beta(1 \oplus 2 \ominus 3 \otimes -4) is ....