1) Determine the economic service life (ESL) at i 10% per year for a robot that has an initial cost of s1o,ooo and estimated AOC& year-end salvage values as shown in the table below. Year AOC,$Salvage Value, $ 1,000 -1,200 -1,500 2,000 3,000 7,000 5,000 4,200 3,000 2,000 4