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October 2, 2014

October 2, 2014

Posted by **andy** on Thursday, July 25, 2013 at 2:11pm.

- calculus -
**Steve**, Thursday, July 25, 2013 at 2:53pmThe region is the upper half of a circle with radius 1/2 centered at (1/2,0):

(x-1/2)^2 + y^2 = 1/4

So,

∫[0,1]∫[0,√1/4 - (x-1/2)^2) 1/√(x^2+y^2) dy dx

recall that √1/(x^2+y^2) dy = arcsinh(y/x) = log(x + √(x^2+y^2))

- calculus -
**Steve**, Thursday, July 25, 2013 at 2:54pmoops that's log(y + √(x^2+y^2))

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