Double integral

  • Thread starter xstetsonx
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  • #26
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Equations have = in them, and I don't see any.

The line x = 1 (one boundary of the region of integration) can be converted to polar this way:
r*cos(theta) = 1 ==> r = 1/cos(theta) = sec(theta).

The circle's equation is x^2 + y^2 = 2x. Converting to polar, you get this:
r^2 = 2rcos(theta) ==> r = 2cos(theta), which I get by dividing both sides of the first equation by r.
 
  • #27
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MARK you are once again the awesomest guy on here
thanks alot

Told you he's a legend! His input to homework threads (not necessarily my own) has helped me on more than one occasion.

Anyway, I'm waaaay off topic here! :biggrin:
 
  • #28
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yea thanks to mark i got an A on my exam!!!!!!!!!!!!!!!!!!!!!!!
 
  • #29
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That's great!
 

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