Hi, can someone cheak my solution to these problems:
For 1 a) i got they don't exist since for a>0- 3a^2
a<0- -3a^2
b) again same they don't exist since for a>0- 2a-1
a<0- -2a+1
Thsnks
Ps i put it in this section as i am learing this in an analysis course.