trigonometry troubles in limits

[NRS]

I'm a little rusty on my trigonometry, and would appreciate some help:

Find the limit:
[attachment=0:1eglynny]image.jpg[/attachment:1eglynny]

 

[galactus]

Note that \(\displaystyle \frac{cos(x)}{cot(x)}=\frac{cos(x)}{\frac{cos(x)}{sin(x)}}=sin(x)\)

 

[NRS]

thanks alot!