Expression 2: .3sine left parenthesis, 2 left parenthesis, "x" plus StartFraction, pi Over 4 , EndFraction , right parenthesis , right parenthesis left brace, negative StartFraction, pi Over 4 , EndFraction less than or equal to "x" less than or equal to StartFraction, pi Over 4 , EndFraction , right brace.3sin2x+π4−π4≤x≤π4
2
Expression 3: StartAbsoluteValue, .3csc left parenthesis, 2 "x" , right parenthesis , EndAbsoluteValue minus 2 left brace, .1 4 6 less than or equal to StartAbsoluteValue, "x" , EndAbsoluteValue less than or equal to 1.4 2 , right brace.3csc2x−2.146≤x≤1.42