A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Proving easy one,
Area of sector POB is equal to twich the area of the shaded region, show that
\[3\theta=2(pisin( pi\theta))\]
 2 years ago
Proving easy one, Area of sector POB is equal to twich the area of the shaded region, show that \[3\theta=2(pisin( pi\theta))\]

This Question is Closed

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1Actually you can simplify a little bit by \[A(shaded)=\frac{1}{2}r^2(pi\theta)\frac{1}{2}(r^2)(\sin(pi\theta))\] \[A(shaded)=\frac{1}{2}(r^2)(pi\theta\sin(pi\theta))\]

dpaInc
 2 years ago
Best ResponseYou've already chosen the best response.1magic happens in between...

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1POB=2AP \[\frac{1}{2}r^2 \theta=2(\frac{1}{2}r^2(pi\theta\sin(pi\theta))\] \[\theta=2(pi\theta\sin(pi\theta))\] \[\theta=2pi2\theta2\sin(pi\theta))\] \[3\theta=2(pi\sin(pi\theta))\]

dpaInc
 2 years ago
Best ResponseYou've already chosen the best response.1yea, i missed that negative sin up there.

dpaInc
 2 years ago
Best ResponseYou've already chosen the best response.1nice problem @.Sam. .... thankx. :)

.Sam.
 2 years ago
Best ResponseYou've already chosen the best response.1I'll post another one but a bit mind boggling :D
Ask your own question
Ask a QuestionFind 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.