Question 12
If $2\oplus2=2+3$ and $3\oplus4=3+4+5+6$. Find the value of $6\oplus5$.
Editorial interpretation: take $a\oplus b$ to mean the sum of $b$ consecutive integers beginning with $a$. The examples suggest this rule but do not uniquely define an arbitrary operation. The answer below is conditional on this intended rule.
Editorial interpretation: take $a\oplus b$ to mean the sum of $b$ consecutive integers beginning with $a$. The examples suggest this rule but do not uniquely define an arbitrary operation. The answer below is conditional on this intended rule.