SOLUTION: how to solve: Rationalize 5/1 + i

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: how to solve: Rationalize 5/1 + i      Log On


   



Question 554423: how to solve:
Rationalize
5/1 + i

Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
5/1 + i = 5%2F1%2Bi
You must have meant 5/(1 + i) = 5%2F%281+%2B+i%29
5%2F%281+%2B+i%29 = 5%2F%281+%2B+i%29%281-i%29%2F%281+%2B+i%29 = %285-5i%29%2F%28%281%2Bi%29%281-i%29%29 = %285-5i%29%2F%281-i%5E2%29 = %285-5i%29%2F2 = 5%2F2-5i%2F2