運算式 4: "o" left parenthesis, "x" , right parenthesis equals "x" squared minus 2 "x" cubedox=x2−2x3
4
運算式 5: left parenthesis, StartFraction, 1 minus "a" Over 2 , EndFraction , "a" left parenthesis, 1 minus "a" minus StartFraction, 1 minus "a" Over 2 , EndFraction , right parenthesis StartFraction, 1 minus "a" Over 2 , EndFraction , right parenthesis1−a2,a1−a−1−a21−a2
5
運算式 6: "a" Subscript, "k" , Baseline equals left bracket, 1 third minus 0.0 5 , 1 third ...0.5 , right bracketak=13−0.05,13...0.5
6
運算式 7: "a" Subscript, "k" , Baseline left parenthesis, 1 minus "a" Subscript, "k" , Baseline minus "x" , right parenthesis "x"ak1−ak−xx
