I'm really struggling with these trig limits. I have three of them that I can't get straight, which I'll post separately. Sorry in advance for dropping all of these. I've stared at them endlessly, and don't know what else to do. Here's the first one:
I want to say that , but I know this isn't correct. The answer to this is , but I have no idea how to get there. We haven't covered L'Hospitals rule yet, so somehow I think that I have to get this down to , but I just can't figure it out.
Can somebody please help?