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Old November 6th, 2008, 05:49 AM
HallsofIvy HallsofIvy is offline
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Quote:
Originally Posted by perash View Post
Solve for positive real x

\lfloor \sqrt{x}\lfloor \sqrt{x} \rfloor \rfloor +\lfloor \sqrt{x}\rfloor +1=x
It should be obvious from the definition of "floor" that \lfloor x\rfloor+ 1> x for all positive x so there is no positive x satisfying that equation.
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