Give answer in rectangular form

[pugfug90]

Homework Statement

Find the quotient w*u, w/u, w^2
w=3(cos30 degrees + isin 30 degrees)
u=2(cos 60 degs + isin 60 degs)
Give answer in rectangular form..

The Attempt at a Solution

I can convert polar to rectangular and back.. but trig to rectangular? Eh?

I got w*u=6i... I think that would be considered "standard form a + bi" but teacher ?typo? wrote "rectangular form"..

 

[cristo]

Rectangular form means express z in the form z=x+iy. Clearly, wu=6i is in rectangular form!

 

[pugfug90]

I'm researching about "rectangular form" and I'm finding it to be a+jb. But no worries, I looked up my teacher's key to the review guide, rectangular form is also a+bi or x+iy or something and who cares so case closed:)

 

[cristo]

"a and b" and "x and y" are just numbers, so there's no difference there. Some people (engineers?) take the square root of -1 to be j instead of i. They are both correct.