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TIMO - 2017 - Grade 7 - Preliminary Round - Paper 1 Question 8

TIMO · TIMO - 2017 - Grade 7 - Preliminary Round - Paper 1

Question 8

Find the value of $3\boxtimes3$. The operation $\boxtimes$ is defined by:
(i) For all $x,y$, $x\boxtimes y=(x-1)\boxtimes(y-1)+x+y$.
(ii) For all $x$, $x\boxtimes1=1$.
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