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Mathstud28 · #5 May 11th, 2008, 11:08 PM

Quote:

Originally Posted by chousta

Hi.

no its not a test. out of a multiple choice worksheet with no answers. and i have an exam very very soon and im freaking out.

For number five use the fact that mins and maxs for f(x) are zeros for f'(x)

1.its everywhere

2. you will just have to grunt implicitly differentiate

3. $\ln(u(x))$ is undefined $\forall{x}\leq{0}$

4. if f(x) is continous at c then

$\lim_{x\to{c}}f(x)=f(c)$

and if it is differentiable at c then

$\lim_{x\to{c}}f'(x)=f'(c)$

6. if it is talking about continuity check out the first part of the last thing I said

7. done

8.check vert. asymptotes (places that make denominator equal to 0)