A community for students.
Here's the question you clicked on:
 0 viewing

This Question is Closed

frx
 2 years ago
Best ResponseYou've already chosen the best response.2So, do you know how to find the the angle?

frx
 2 years ago
Best ResponseYou've already chosen the best response.2Try to think of the unitcircle

frx
 2 years ago
Best ResponseYou've already chosen the best response.24 is simply just a scaledup 1 so that means that the angle is what?

frx
 2 years ago
Best ResponseYou've already chosen the best response.2Or pi since you're looking for the polarform

Itel
 2 years ago
Best ResponseYou've already chosen the best response.0Thanks. 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

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

frx
 2 years ago
Best ResponseYou've already chosen the best response.2So since your alternatives are in degrees and not radians you know it's 180 degrees.

frx
 2 years ago
Best ResponseYou've already chosen the best response.2So it's the last one of your options

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

frx
 2 years ago
Best ResponseYou've already chosen the best response.2If you have any questions just send a pm
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.