Expression 19: "D" Subscript, "C" "a" , Baseline equals StartFraction, StartAbsoluteValue, "a" "x" Subscript, 0 , Baseline plus "b" "y" Subscript, 0 , Baseline plus "c" "z" Subscript, 0 , Baseline plus "d" , EndAbsoluteValue Over StartRoot, "a" squared plus "b" squared plus "c" squared , EndRoot , EndFractionDCa=ax0+by0+cz0+da2+b2+c2
equals=
99
19
Expression 20: "R"R
equals=
99
20
Besvarelse
21
Expression 22: "y" Subscript, "e" "s" , Baseline equals left brace, "D" Subscript, "C" "a" , Baseline equals "R" : 1 , 0 , right braceyes=DCa=R:1,0