I have the limit as x goes to 0 ln(cotx)/(e^csc^2(x)) it reads as the natural log of cotx divided by e raised to the csc squared x the csc is csc^2(x). cotx as x goes to 0 is 1/0, which is undefined. How would I start this?
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Try letting Then you get: Now use L'Hopital:
Last edited by galactus; Jul 14th 2007 at 02:52 PM.
Originally Posted by galactus Try letting Then you get: Now use L'Hopital: I saw you changed x goes to 0 to u goes to infinity. Why does u not go to 0?
Because we done a change of variables. Just like when you sub in integration, you have to change the limits.
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