you get 2 if you approach from the right and you get -2 if you appoach from the left.
Hence there is no limit.
if u>0 and if u<0.
Hence there is no limit.
Hence there is no limit.
Hence there is no limit.
you get 2 if you approach from the right and you get -2 if you appoach from the left.
Hence there is no limit.
if u>0 and if u<0.
Hence there is no limit.
Hence there is no limit.
Hence there is no limit.