Convert the infix statement a+b*(c-d)/e*f to postfix Convert the infix notation S+Z/O+(A*B/C) to postfix Convert the infix notation (c+c)/2*a*b/2to prefix Convert the infix notation A+B*(C/D+E)*r/z to prefix given A=10,B=20,C=5,D=2.E=4,r=1 and z=6