Does anybody know how to write a complex # in trigonometric form? (i.e. 24+7i)

Question

Does anybody know how to write a complex # in trigonometric form? (i.e.  24+7i)

solomonzelman · Answer

what exactly do you need to do with $$24+7i~?$$

anonymous · Answer

It says "write the complex number (24+7i) in trigonometric form. Round the angle to the nearest hundreth of a degree."

solomonzelman · Answer

I really don't get it, @shamil98 are you there?

anonymous · Answer

It's multiple choice... do you wanna see the options?

anonymous · Answer

a) 25cis16.38degrees   b) 25cis16.35degrees   c) 25cis16.20degrees   d) 25cis16.20degrees   e) 25cis16.26degrees

shamil98 · Answer

trig form is ,( r cos theta, r sin theta )
think of 24 + 7i as 
the point (24,7i)
find r by
$$\huge r = \sqrt{x^2 + y^2}$$

shamil98 · Answer

i have to go for now , so that's all the help i can give atm sorry.

anonymous · Answer

that's ok... thanks anyway

joannablackwelder · Answer

joannablackwelder · Answer

arctan is the same as tan^-1 if you are more familiar with that terminology.