Mathematics
OpenStudy (anonymous):

How do you find the limit as (x,y) tends to (0,0) of (x^2 + y^2)/(sqrt(x^2 + y^2 + 1) -1)? I don't know what to sub in to find this.

OpenStudy (anonymous):

maybe we can try multiplying top and bottom by the conjugate, like you would if you just had $\frac{x}{\sqrt{x+1}-1}$

OpenStudy (amistre64):

Math Processing Error .. in nice RED letters .....

OpenStudy (amistre64):

@mattfuery , how do we fix that since its only appears to be affecting my computer

OpenStudy (amistre64):

@mattfeury

OpenStudy (amistre64):

that one turned blue yay!!

OpenStudy (anonymous):

othere have complained they cannot read what i write as well

OpenStudy (amistre64):

it depends on what you wrote :)

OpenStudy (anonymous):

Thanks satellite, I still understood what you meant. That method worked and I got the correct answer of 2.

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