# Limit question

1. Sep 30, 2007

### celeste6

hey could anyone help me with some limit probs?
the lim as x approaches 9
(x^2 - 81)/($$\sqrt{}x$$ - 3)

lim as x approaches 0
(2x+sinx)/x

lim as x approaches o from the right side
(sinx)/(5$$\sqrt{}x$$)

lim as x approaches 0
(tan7x)/(sin3x)

thanks!

2. Sep 30, 2007

### genneth

You have to show some attempted workings -- not only because doing is the best way to learn, but because then we know where to begin to help. So in this case, are you familiar with l'Hopital's rule?

3. Oct 1, 2007

### celeste6

ok i'll guess
108
3
?
7/3

4. Oct 1, 2007

### HallsofIvy

Staff Emeritus
Don't guess! Show us your calculation- it's not that much to want!