Thread: limit cotx

here is the problem

lim x approaches pi of cotx

would anyone please tell me how to prove the limit doesnt exist by using sided limit from both sides. my prof told me that i have to show x approaches PI from the left and from the right.

thank you

Yes, you have to do what your professor told you to do. Recall that:



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EXTRA:

thank you for your help. i knew what you said but i got stuck in showing x approaches PI from the left and from the right