please help...Let f be the function given by
a) Find the domain of f.
b) Find f '(x)
c) Find the slope of the line normal to the graph of f at x = 5
f(x)= sqrt(x^4-16x^2)

Question

please help...Let f be the function given by
	a) Find the domain of f.
	b) Find f '(x)
	c) Find the slope of the line normal to the graph of f at x = 5 
f(x)= sqrt(x^4-16x^2)

anonymous · Answer

here we go again...

mertsj · Answer

Tell your teacher that this is a site for people who need help and not a site for social research and engineering.

anonymous · Answer

http://openstudy.com/study#/updates/4f4c3746e4b0acf2d9fdaa3f

anonymous · Answer

have you answered it previously?

anonymous · Answer

your doing this too?

anonymous · Answer

yeah man did you get any of the questions answered? they look like they answered these a lot of times.

anonymous · Answer

werd everyone gets mad annoyed.  i got the first one.

anonymous · Answer

and are frankly rather unhappy about it. not with you of course, but with your teacher. 
if you have an actual math question you actually need help with, post and you will get lots of willing responses.  but the next time you teacher says "go post these problems" tell her (i understand it is a her) that that is very very rude.

anonymous · Answer

my bad man, thanks for the help you've done so far. we told her today and she felt terrible. by any chance, do you have the links to these 2 problems? if so, can you please post them here?

anonymous · Answer

http://openstudy.com/study#/updates/4f47df67e4b00aeb3e3f067f

anonymous · Answer

that's the wrong viral question. it should start with a "..Let f be the function" and "..Let R be the region in the xy-plane".