Expression 2: sine left parenthesis, "x" , right parenthesis left brace, negative StartFraction, pi Over 2 , EndFraction less than or equal to "x" less than or equal to StartFraction, pi Over 2 , EndFraction , right bracesinx−π2≤x≤π2
2
Expression 3: arc sine left parenthesis, "x" , right parenthesisarcsinx
3
Expression 4: left parenthesis, "t" , "t" , right parenthesist,t
domain t Minimum: negative 2−2
less than or equal to "t" less than or equal to≤t≤