so didnt pay attention is first calc class a week ago and left the hmwk until tonight.. who can help me "evaluate" the following...

Question

anonymous · Answer

lol good luck

tcp2315 · Answer

$$\lim_{x \rightarrow 2}(x ^{2}+4x+1)$$

mertsj · Answer

13

tcp2315 · Answer

so then $$\lim_{h \rightarrow 0}((h-5)^{2}-25) \div h$$ is 0

anonymous · Answer

unfortunately no, since the result of that is undefined (0/0) you have to do other stuff to compute the limit (remember a limit doesn't care if the function is defined or not)

tcp2315 · Answer

so is that when i have to find the "hole"?

anonymous · Answer

do you know l'hopitals rule?

anonymous · Answer

thats probably what went on in your lecture this week!

anonymous · Answer

if hes in the first part of calculus they probably want him to do that w/ algebra and not lhopitals rule (that's what they made me do)

myininaya · Answer

$$\lim_{h \rightarrow 0}\frac{h^2-10h+25-25}{h}=\lim_{h \rightarrow 0}\frac{h^2-10h}{h}=\lim_{h \rightarrow 0}(h-10)$$

anonymous · Answer

yeah that

anonymous · Answer

yes this is newtons approach to taking derivatives! Very good lesson! Calculus I good lord that was long ago!

tcp2315 · Answer

haha high school calculus, payed attention next calss. that concept was unbelievably easy i must have looked stupid asking that hahahah. wow.

myininaya · Answer

There are no stupid questions.