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#1 Re: Help Me ! » Square root of sum alternate form derivation » 2014-12-12 23:15:52

lemniscate

Right, got it. Thanks for the quick response.

#2 Help Me ! » Square root of sum alternate form derivation » 2014-12-12 22:54:33

lemniscate
Replies: 3

Hello,

Recently I watched a math lecture in which the teacher wrote sqrt(x^2+x)  and derived the following alternate form from it:

x * sqrt(1+1/x)

Can someone please explain this derivation step-by-step?

Thanks

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