Expression 13: left parenthesis, "x" minus 10 , right parenthesis squared plus left parenthesis, "y" minus 10 , right parenthesis squared less than or equal to 3x−102+y−102≤3
13
Expression 14: "f" left parenthesis, "x" , right parenthesis equals left parenthesis, 1 half cos left parenthesis, "x" , right parenthesis minus 1 , right parenthesisfx=12cosx−1