Leave these fields empty (spam trap):
You can leave this blank to post anonymously, or you can create a Tripcode by using the format Name#Password
[i]Italic Text[/i]
[b]Bold Text[/b]
[spoiler]Spoiler Text[/spoiler]
>Highlight/Quote Text
[pre]Preformatted & Monospace Text[/pre]
[super]Superset Text[/super]
[sub]Subset Text[/sub]
1. Numbered lists become ordered lists
* Bulleted lists become unordered lists


Discord Now Fully Linked With 420chan IRC


- Fri, 05 Dec 2014 16:44:51 EST wdBv6x7g No.14503
File: 1417815891494.jpg -(55091B / 53.80KB, 500x471) Thumbnail displayed, click image for full size. haalp
i need to find the area of the polar curve 2(a)sin(theta)

i keep getting 2(pi)(a)^2 but the book says its just (pi)(a)^2

i used the bounds 0 to 2pi which could be wrong but i dont see why.
Angus Worthingshaw - Fri, 05 Dec 2014 16:48:52 EST wdBv6x7g No.14504 Reply
ugh fuck im an idiot guys ill the bounds are 0 to pi for this curve
Nigel Depperham - Sat, 06 Dec 2014 00:41:32 EST XpKKr8Wn No.14505 Reply
the fuck is (a) supposed to be? what are you integrating with respect to?
Betsy Drocklekudging - Sat, 06 Dec 2014 23:47:00 EST qz3c7Bt+ No.14506 Reply
1417927620903.gif -(3740B / 3.65KB, 338x155) Thumbnail displayed, click image for full size.
Phineas Mellyshit - Wed, 17 Dec 2014 04:30:13 EST xatex5Q1 No.14536 Reply
The shape you are finding the area of is under the polar curve. You only integrate over the interval of theta that it takes the polar curve to draw the shape. After that its just tracing itself.

Report Post
Please be descriptive with report notes,
this helps staff resolve issues quicker.