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OpenStudy (anonymous):
at http://tutorial.math.lamar.edu/Classes/DE/Separable.aspx in 1st example how do we conclude that the interval of validity is -(28/3)^1/2 < x < (28/3)^1/2 , if I am not wrong is it because it is the only interval that contains x=1 and the other two we find in this example don't have x=1 in them?
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OpenStudy (turingtest):
yes, you are exactly right out of the three intervals, only that one contains x=1
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