Expression 17: "y" equals "W" Subscript, "a" "v" "e" , Baseline sine left parenthesis, "x" minus "h" Subscript, "w" "a" "v" "e" , Baseline , right parenthesis plus "k" Subscript, "w" "a" "v" "e" , Baseline left brace, "h" Subscript, "w" "a" "v" "e" , Baseline minus 10 less than "x" less than "h" Subscript, "w" "a" "v" "e" , Baseline plus 10 , right bracey=Wavesinx−hwave+kwavehwave−10<x<hwave+10