A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
What are the polar coordinates for the point (1,2) i got r = 5 but theta = arctan 2?
anonymous
 5 years ago
What are the polar coordinates for the point (1,2) i got r = 5 but theta = arctan 2?

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and yes, in this case \[\theta =\tan^{1}(2)\] because you are in quadrant 4

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay so arctan(2) is correct?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes. it is always the case that \[\tan(\theta)=\frac{b}{a}\] but it is not always the case that \[\theta=\tan^{1}(\frac{b}{a})\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0because arctan only returns answers in \[[\frac{\pi}{2},\frac{\pi}{2}]\]so you need to be careful about what quadrant you are in
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.