수식 7: left parenthesis, "a" sin left parenthesis, "b" "t" plus "c" , right parenthesis plus "d" , "t" left brace, "S" equals 1 , right brace , right parenthesisasinbt+c+d,tS=1
7
수식 8: left parenthesis, left parenthesis, "a" sin left parenthesis, "b" "P" plus "c" , right parenthesis plus "d" , right parenthesis , 15 plus left parenthesis, "P" minus 15 , right parenthesis , right parenthesisasinbP+c+d,15+P−15
