Expression 1: 25sine left parenthesis, "x" , right parenthesis cosine left parenthesis, "x" , right parenthesis minus 5sine left parenthesis, "x" , right parenthesis plus 20cosine left parenthesis, "x" , right parenthesis Has graph. To audio trace, press ALT+T.25sinxcosx−5sinx+20cosx
1
Expression 2: "y" equals 4 Has graph. To audio trace, press ALT+T.y=4