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Mathematics
OpenStudy (anonymous):

Problem for you: Find domain: 1/( sqrt [ {x + 1} - x^2 + 2x])

OpenStudy (anonymous):

Where {} is the fractional part function. So in { x + 1} You consider the Fractional part ONLY. :)

OpenStudy (anonymous):

|dw:1338112426262:dw|

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