表达式7: "a" equals StartFraction, 1 Over 2 left parenthesis, "m" Subscript, "x" , Baseline plus "R" , right parenthesis , EndFraction left parenthesis, "b" minus "m" Subscript, "y" , Baseline , right parenthesis squared plus 1 half left parenthesis, "m" Subscript, "x" , Baseline minus "R" , right parenthesisa=12mx+Rb−my2+12mx−R
equals=
1.3 8 0 51.3805
7
表达式8: left parenthesis, "x" minus "a" , right parenthesis squared plus left parenthesis, "y" minus "b" , right parenthesis squared equals "a" squaredx−a2+y−b2=a2
8
隐藏 标签 left parenthesis, "a" , "b" , right parenthesisa,b
标签
equals=
left parenthesis, 1.3 8 0 5 , negative 5.9 , right parenthesis1.3805,−5.9
9
隐藏 标签 left parenthesis, "m" Subscript, "x" , Baseline , "m" Subscript, "y" , Baseline , right parenthesismx,my
