Expression 7: "h" left parenthesis, "x" , right parenthesis equals "e" Superscript, "x" , Baseline plus "e" Superscript, left parenthesis, negative "x" , right parenthesis , Baselinehx=ex+e−x
7
Expression 8: "k" left parenthesis, "x" , right parenthesis equals 2 plus "x" squaredkx=2+x2
8
Expression 9: "y" equals "h" left parenthesis, cos left parenthesis, "x" , right parenthesis , right parenthesisy=hcosx
9
Expression 10: "y" equals "k" left parenthesis, cos left parenthesis, "x" , right parenthesis , right parenthesisy=kcosx
10
Expression 11: 0 less than or equal to "y" less than or equal to "f" left parenthesis, "x" , right parenthesis left brace, 0 less than or equal to "x" less than or equal to pi , right brace0≤y≤fx0≤x≤π
11
Expression 12: 0 less than or equal to "y" less than or equal to "g" left parenthesis, "x" , right parenthesis left brace, 0 less than or equal to "x" less than or equal to pi , right brace0≤y≤gx0≤x≤π
12
Expression 13: 0 less than or equal to "y" less than or equal to "h" left parenthesis, cos left parenthesis, "x" , right parenthesis , right parenthesis left brace, 0 less than or equal to "x" less than or equal to pi , right brace0≤y≤hcosx0≤x≤π
13
Expression 14: 0 less than or equal to "y" less than or equal to "k" left parenthesis, cos left parenthesis, "x" , right parenthesis , right parenthesis left brace, 0 less than or equal to "x" less than or equal to pi , right brace0≤y≤kcosx0≤x≤π