Expression 4: "a" left parenthesis, "x" , right parenthesis equals StartFraction, left parenthesis, negative 1 , right parenthesis Superscript, "x" , Baseline Over "x" , EndFractionax=−1xx
4
Hidden Label: left parenthesis, "n" , "a" left parenthesis, "n" , right parenthesis , right parenthesisn,an
Label
5
Expression 6: "n" equals left bracket, 1 , ... , "N" , right bracketn=1,...,N