Complex numbers and polar form

Hello,

We're doing a bit of an introduction to complex numbers and their polar form in my math unit. I have a question that according to the unit notes, I have incorrect, but I would think that I am actually, correct. Could someone clarify the correct answer here?

Now, according to the unit notes, the answer I SHOULD have gotten is

Can somebody explain which answer is correct?

Re: Complex numbers and polar form

your answer is correct too...

Remember that:

Re: Complex numbers and polar form

Your answer is INCORRECT, because we define complex numbers in the region . If you end up with an angle outside that region you need to add/subtract multiples of until you ARE in that region.

Re: Complex numbers and polar form

Quote:

Originally Posted by

**Prove It** Your answer is INCORRECT, because we define complex numbers in the region

. If you end up with an angle outside that region you need to add/subtract multiples of

until you ARE in that region.

but the two answers are okay, right?

As far as I've understood it is a convention to not have two identical answers. I'm not sure...

Re: Complex numbers and polar form

Quote:

Originally Posted by

**darthjavier** but the two answers are okay, right?

As far as I've understood it is a convention to not have two identical answers. I'm not sure...

The two answers are identical, but you are EXPECTED to use the convention that to make life easier for everyone.