Another derivative qn! tried doing l'hopital's rule but its going nowhere ): Any kind souls pls help!

See attachment
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Question

Another derivative qn! tried doing l'hopital's rule but its going nowhere ): Any kind souls pls help!

See attachment
http://img546.imageshack.us/img546/2365/al89.png

hba · Answer

The link is not working. :/

inkyvoyd · Answer

after one application of l'hopital's you should be getting simply -sin(x)

inkyvoyd · Answer

*-sin(theta)

hba · Answer

What's the ques?

inkyvoyd · Answer

I'd tell you but I'm off to bed, sorry

hba · Answer

^ I wasn't even talking to you man!

anonymous · Answer

qn is lim -->theta = pi/6 , cos theta - (sqrt 3)/2 / (theta - pi/6) @inkyvoyd but the denominator would still be 0 right?

anonymous · Answer

Find the limit of the following: 
|dw:1381649949582:dw| 
@hba