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Mathematics 16 Online
OpenStudy (anonymous):

Can someone help me with doing this polar curve? Pleasee

OpenStudy (anonymous):

Find the area of the region that is inside the graph of r = 1 + sin θ and outside of the graph of r = 1.

OpenStudy (anonymous):

Im confused what exactly they are asking for. I can do the math

OpenStudy (kainui):

Well, I guess try to do as much as you can, pretend you know what to do and just start working something. Maybe try graphing it or setting up an integral?

OpenStudy (anonymous):

so i believe that the bounds of integration should be 0 to pi

OpenStudy (anonymous):

integral from 0 to pi of (1/2) ((1+sin(theta))^2-1) dtheta

OpenStudy (anonymous):

right idea?

OpenStudy (bobo-i-bo):

Yup! you have the right idea, although your integral bounds are wrong. :P

OpenStudy (anonymous):

pi to 2pi maybe?

OpenStudy (anonymous):

not sure

OpenStudy (bobo-i-bo):

Draw the graph of the plots! :D It'll help

OpenStudy (bobo-i-bo):

Oh, sorry >.< You are completely right. The bounds are right.

OpenStudy (anonymous):

haha im right with my first bounds or with pi to 2pi?

OpenStudy (anonymous):

no worries

OpenStudy (bobo-i-bo):

First bounds are right.

OpenStudy (bobo-i-bo):

Lol, i drew the graph and found that the first bounds were right :P

OpenStudy (anonymous):

thank you. I appreciate the help!

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