Expression 3: left parenthesis, 1 minus "x" , right parenthesis Superscript, left parenthesis, "x" minus 1 , right parenthesis , Baseline1−xx−1
3
Expression 4: left parenthesis, "x" minus 1 , right parenthesis natural log left parenthesis, 1 minus "x" , right parenthesis minus "x" natural log left parenthesis, "x" , right parenthesisx−1ln1−x−xlnx
4
Expression 5: "y" equals natural log left parenthesis, "a" , right parenthesisy=lna