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frxBest ResponseYou've already chosen the best response.1
So, do you know how to find the the angle?
 one year ago

frxBest ResponseYou've already chosen the best response.1
Try to think of the unitcircle
 one year ago

frxBest ResponseYou've already chosen the best response.1
4 is simply just a scaledup 1 so that means that the angle is what?
 one year ago

frxBest ResponseYou've already chosen the best response.1
Or pi since you're looking for the polarform
 one year ago

ItelBest ResponseYou've already chosen the best response.0
Thanks. These are the possible answers: 4(cos 270° + i sin 270°) 4(cos 90° + i sin 90°) 4(cos 0° + i sin 0°) 4(cos 180° + i sin 180°) So how do I find out which one of those is the answer if it is pi or 180 degrees? thanks again
 one year ago

frxBest ResponseYou've already chosen the best response.1
\[z=\sqrt{4^{2}}=4\] \[\arg(z)= \pi \] \[4(\cos \pi+isin \pi)\]
 one year ago

frxBest ResponseYou've already chosen the best response.1
So since your alternatives are in degrees and not radians you know it's 180 degrees.
 one year ago

frxBest ResponseYou've already chosen the best response.1
So it's the last one of your options
 one year ago

ItelBest ResponseYou've already chosen the best response.0
Oh i see what you did. Thank you so much man. I really appreciate your help. Very thorough explanation.
 one year ago

frxBest ResponseYou've already chosen the best response.1
If you have any questions just send a pm
 one year ago
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