Question

limit of tanx as x approaches pi from the left

Answer 1

since tan(x) = sin(x)/cos(x), this means that


tan(x) = sin(x)/cos(x)

tan(pi) = sin(pi)/cos(pi)

tan(pi) = 0/(-1)

tan(pi) = 0


So the limit of tan(x) as x approaches from the left is 0.

Answer 2

Thank you!!