Help Please, attachments to come...

Question

poofypenguin · Answer

Here's the question and the solutions i got, but at least one of the answers are wrong, and i don't know which ones...

poofypenguin · Answer

I'm about to post the work i've done...

poofypenguin · Answer

attachment

anonymous · Answer

B and D are reversed.  I think you should try  L'Hopital's rule on the third one on the list.  
sin(2x-2)
-------       +1

(x-1)

the fraction is indeterminate, s o d/dx top = 2cos(2x-2), eval at 1 = 2
                                                  d/dx bottom = 1
BUT don't forget the +1, so the third one is 3, not 2
And the first one is 2, not 3

anonymous · Answer

You forgot the -1 and the +1 that are next to the hard part, that's all.  You have very clear work, it is a pleasure to read.

poofypenguin · Answer

Oh whoop! hahahahahaha! I'm banging my head on the table right now! 
Thanks so much for your help again! You're the best! :D