Expression 1: "f" left parenthesis, "x" , right parenthesis equals absolute value left parenthesis, StartFraction, sin left parenthesis, "x" , right parenthesis Over "x" , EndFraction , right parenthesisfx=abssinxx
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Expression 2: "f" left parenthesis, "x" , right parenthesis equals left parenthesis, StartFraction, sin left parenthesis, "x" , right parenthesis Over "x" , EndFraction , right parenthesis squaredfx=sinxx2