Expression 2: 20 left parenthesis, cos left parenthesis, StartFraction, "x" Over 100 , EndFraction plus "t" , right parenthesis cubed plus cos left parenthesis, StartFraction, pi "x" Over 200 , EndFraction , right parenthesis , right parenthesis Has graph. To audio trace, press ALT+T.20cosx100+t3+cosπx200
2
Expression 3: "t" equals 2.3t=2.3
00
2 pi2π
3
Expression 4: "x" equals 888 Has graph. To audio trace, press ALT+T.x=888