Expression 3: "X" equals StartFraction, "Y" sin 15 Over sin 3 , EndFractionX=Ysin15sin3
equals=
3.2 3 6 0 6 7 9 7 7 53.2360679775
3
Expression 4: StartFraction, "B" Subscript, "C" , Baseline left brace, 0 less than "X" less than "B" Subscript, "C" , Baseline , right brace Over "X" cos 3 plus "Y" cos 15 , EndFraction tilde 1BC0<X<BCXcos3+Ycos15~1