Question #81dbe

1 Answer
t0hierry
Sep 6, 2017

For x>1 and x<-1, the function is continuous

Explanation:

graph{ln((x-1)/(x+1)) [-2, 2, -100, 100]}

The argument of the log should not be negative. In this case the sign of the argument is positive twice. For x>1 and for x <-1.

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