@grogror Weird. Is there a worked example in the section text that's similar?
@grogror don't know OtToMH, but that's a limit of the form infinity - infinity, there should be a version of Lopital that works
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@grogror Then sqrt(x^2 + x) - x ~= sqrt[(x + 1/2)^2] - x = x + 1/2 - x = 1/2.
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@grogror Dude, *I* didn't see it until you showed me that example. Factoring tricks are one of the dark arts.
End of conversation
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. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.