- #1

Willian93

- 12

- 0

## Homework Statement

lim (x→pi)〖sin(x-pi)/(x-pi)〗

## Homework Equations

i don't know if we should use trig identity

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

## 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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