表达式5: StartFraction, "x" squared Over 2 , EndFraction minus StartFraction, "x" to the 4th power Over 4 times 2 "a" squared , EndFraction plus StartFraction, "x" to the 6th power Over 6 times 24 "a" to the 4th power , EndFraction left parenthesis, 4 "a" squared minus 3 , right parenthesisx22−x44·2a2+x66·24a44a2−3
5
表达式6: "x" minus StartFraction, "x" cubed Over 2 "a" squared , EndFraction plus 4 StartFraction, "x" to the 5th power Over 24 "a" to the 4th power , EndFraction left parenthesis, 4 "a" squared minus 3 , right parenthesis minus 0 StartFraction, "x" to the 7th power Over 720 "a" to the 6th power , EndFraction left parenthesis, 16 "a" to the 4th power minus 60 "a" squared plus 45 , right parenthesisx−x32a2+4x524a44a2−3−0x7720a616a4−60a2+45
6
表达式7: StartFraction, 1 Over 3 "a" , EndFraction left parenthesis, "a" squared minus "x" squared , right parenthesis Superscript, 3 halves , Baseline13aa2−x232
7
表达式8: "f" left parenthesis, "x" , right parenthesis equals StartFraction, "x" Over "a" , EndFraction StartRoot, "a" squared minus "x" squared , EndRoot left brace, 0 less than or equal to "x" less than or equal to "a" , right bracefx=xaa2−x20≤x≤a
8
表达式9: "f" left parenthesis, StartFraction, "x" Over 1.0 5 , EndFraction , right parenthesisfx1.05