Question 156
The operation $*$ satisfies the following properties:
$$
x * 0=0,\quad x *(y+1)=x * y+(x-y)
$$
Evaluate $2010 * 10$.
$$
x * 0=0,\quad x *(y+1)=x * y+(x-y)
$$
Evaluate $2010 * 10$.
MathNet 2010 — Part 04 Question 156
Math Olympiad Vault · MathNet 2010 — Part 04