1. The problem statement, all variables and given/known data α=2e3∏i/4 find α11 in cartesian form. 2. Relevant equations 3. The attempt at a solution It's been a while since I've done these but from what remember you add 2kpi to get exp in the range of -∏,∏. so if I let k=15 I get e3∏i/4 but the sltn says it needs to be raised to ∏i/4 can some one please tell me why, should I be adding 4k∏ since it is divided by 4? Thanks.