which is already a "polar form" with and .
Write in the polar form ,.
I know that I should use this: (e^a)(cosb+isinb)
Which is: (e^4)(cos1+isin1)
But then what? How do I get 7e^(a+i) into a+bi form?
*To be more precise what are r=? and theta=? (without decimals)
For question b r=
But does Theta equal? I got but it's wrong.
If there are other posts that could help please feel free to send me links.
Thank you but this looks like Chinese to me. I basically need the value of r and theta that's all.
If you're saying that r= and theta=
r is correct but theta is wrong