Expression 1: "f" left parenthesis, "x" , right parenthesis equals StartFraction, sin left parenthesis, "x" , right parenthesis Over "x" , EndFraction Has graph. To audio trace, press ALT+T.fx=sinxx
1
"x" Subscript, 1 , Baselinex1
"f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis Has graph. To audio trace, press ALT+T.fx1