Question

what is the polar form of (7-7i)

Answer 1

real x axis and nonreal on y axis

Answer 2

sorry imaginary on y axis

Answer 3

I think that's what they are asking. Correct me if I'm wrong. Not 100% sure

Answer 4

well the answer choices are 7sqrt2(cos(7pi/4+ i sin(7pi/4) and stuff like that

Answer 5

Find the magnitude. Let z=7-7i
\[\left| z \right|=\sqrt{7^{2}+7^{2}}\]
\[=7\sqrt{2}\]
Find the argument. \[\tan \theta=-7/7=-1\]
\[\theta=2\pi+\pi/4\]=\[7\pi/4\]
The answer follows :
\[z=\left| z \right|(\cos \theta+i \sin \theta)\]\[=\left| z \right| e ^{i \theta}\]