Posted by Courtney on Wednesday, November 9, 2011 at 1:43pm.
We want
Int(x dy)[0,b] = Int(x dy)[b,9]
x = 1/4 y^(1/2)
Int(y^(1/2))[0,b] = Int(y^1/2)[b,9]
2/3 y^(3/2)[0,b] = 2/3 y^(3/2)[b,9]
2/3 b^(3/2) = 2/3 9^(3/2) - 2/3 b^(3/2)
4/3 b^(3/2) = 2/3 9^(3/2)
2b^(3/2) = 9^(3/2)
2^(2/3) b = 9
b = 9/2^(2/3) = 9/cbrt(4)
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