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Mathematics
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OpenStudy (anonymous):
evaluate the limit as x goes to 0:
((x(3+x))/(6x^2)
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OpenStudy (anonymous):
1/6
OpenStudy (amistre64):
the trick here is to see if we can cancel the part that is giving troubles
OpenStudy (anonymous):
u can use l'hospital though :)
OpenStudy (amistre64):
\[\frac{x(3+x)}{6.x.x}\]
OpenStudy (anonymous):
aaaagh! that is what I missed! Thank you!
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OpenStudy (amistre64):
\[\frac{3+x}{6x}\]
\[\frac{3}{6x}+\frac{x}{6x}\]
OpenStudy (anonymous):
that was a tricky one - thanks for explaining so well!!!
OpenStudy (anonymous):
i/1 though is not one of my choices?
OpenStudy (anonymous):
1/6
OpenStudy (anonymous):
you will always have an undefined in the denom anyway
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OpenStudy (amistre64):
what are your choices?
OpenStudy (anonymous):
1/2
DNE
-3
0
3
OpenStudy (anonymous):
must be DNE
OpenStudy (amistre64):
its DNE; the one sided limits dont agree
OpenStudy (anonymous):
that's what I got yay!
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OpenStudy (amistre64):
it cuts the link short .... bummer
OpenStudy (anonymous):
thanks anyway
OpenStudy (anonymous):
nope for this u should not split and evaluate the limit... u need to apply the l'hospital rule directly, this'll giv u the correct answer.
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