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Mathematics 19 Online
OpenStudy (anonymous):

Please help

OpenStudy (anonymous):

\[\lim_{x \rightarrow 2}(\sqrt{x+2}-\sqrt{2x})\div(x^2-2x)\]

OpenStudy (anonymous):

@phi

OpenStudy (welshfella):

direct substitution gives 0/0 i would apply l'hopitals rule

OpenStudy (anonymous):

I haven't learned about that

OpenStudy (anonymous):

this week we just learned about intro to limits

OpenStudy (phi):

one thought is to multiply top and bottom by \( \sqrt{x+2}+ \sqrt{2x} \)

OpenStudy (welshfella):

ok so we need to find different way

OpenStudy (anonymous):

let me multiply it

OpenStudy (phi):

the top is a difference of squares

OpenStudy (anonymous):

|dw:1438036441844:dw|

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