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Mathematics 9 Online
OpenStudy (anonymous):

Could someone please help me? It's Calculus

OpenStudy (anonymous):

\[\sqrt{x+1}-1/x\] x= -0.001, -0.01, -0.1, 0, 0.001, 0.01, 0.1

OpenStudy (anonymous):

oh and lim x --> 0

OpenStudy (anonymous):

Is this \[ \frac{ \sqrt{x+1}-1 }x \] ?

OpenStudy (anonymous):

yes<3

OpenStudy (anonymous):

Take \[ f(x)=\sqrt{x+1} \]

OpenStudy (anonymous):

The limit should be what in function of f(x)?

OpenStudy (anonymous):

well i know you're suppose to plug and chug those numbers but i kept getting 1 except when i was at 0

OpenStudy (anonymous):

\[ \lim_{x->0}\frac{f(x) -f(0) }{x-0}=f'(0) \]

OpenStudy (anonymous):

could you put that in table form?

OpenStudy (anonymous):

\[f'(x)=\frac{1}{2 \sqrt{x+1}} \\ f'(0)=\frac 12 \]

OpenStudy (anonymous):

\[ \left( \begin{array}{cc} -0.001 & 0.500125 \\ -0.01 & 0.501256 \\ -0.1 & 0.513167 \\ 0 & \text{Indeterminate} \\ 0.001 & 0.499875 \\ 0.01 & 0.498756 \\ \end{array} \right) \] You can see that the limits is approaching .5

OpenStudy (anonymous):

where did you get the 2

OpenStudy (anonymous):

Are you still here?

OpenStudy (anonymous):

no i got it, i had a brain fart, sorry for the stupid question lol

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