02. (a). (i) Show that lim does not exist (ii) Show that lim = 0. =-0 (b). Prove that lim (z² +4z+3) =4-i. :→11/ (z+1) (c). Determine the following limits: (i). lim (ii). lim 818 (iii). lim 01-8 +1 iz² +1 4+z2 (z-1)2 Im(z) Z 1