Expression 2: "y" equals StartFraction, left parenthesis, 5cos 2 "x" , right parenthesis Over sin "x" , EndFraction left brace, negative pi less than "x" less than 0 , right bracey=5cos2xsinx−π<x<0
2
Expression 3: "y" equals StartFraction, left parenthesis, 5cos 2 "x" , right parenthesis Over sin "x" , EndFraction left brace, pi less than "x" less than 2 pi , right bracey=5cos2xsinxπ<x<2π