If , then . Now think about the fact that adding any multiple of does not change z but gives different values for .

Results 1 to 3 of 3

- Mar 1st 2010, 12:02 PM #1

- Joined
- Feb 2010
- Posts
- 7

## log(z+3i)

hey guys... this is a two part question

1. where is the log not analytic

ok so i know its where the Re is less than or equal to 0

and where the Im =0

so i preety much just write log(x+iy+3i)

and equate.. how ever its asking for the log... not the Log

so how do i do that

and lastly how woud i take the log(z+3i)

do i write it as log(re^i@ +3i)

and do ln(r) +.....??

thanks for all the help

- Mar 1st 2010, 12:32 PM #2

- Joined
- Apr 2005
- Posts
- 18,209
- Thanks
- 2428

- Mar 1st 2010, 12:39 PM #3

- Joined
- Feb 2010
- Posts
- 7