(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

lim (x→pi)〖sin(x-pi)/(x-pi)〗

2. Relevant equations

i dont know if we should use trig identity

sin(a-b)= sinA cos B- CosA sin B

3. The attempt at a solution

i use identities to solve that, i did not get the answer. i tried to multiply by conjugate, did not work also.

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# Homework Help: Limits at infinity of trigometric function

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