                                !"#$  #%&  '(  #)  $#$  #'$  *&  *$)"+, - "+%(!  #.  .  $%&  "+)/!"0 1 2 3/4 1 5 6 2 2 2 3x + 2 3 4 2) y = 3) 2x - 3 1 x 4 2 2 1 x 5 4) y = 5) 6) y = 2 1 3 2 3 1 x x y x x x x y x x x - + = + - + + + - = + - - $  ('.'$  *&   2 4 4 1 x x y x - + = - +.  (%&  '(  7$  83 3 '$  .*$  '$  *&  0 2) ,  $9$  .%&  '(  '$  *&  :(!  "7);  "'<.=*&  "+'(!  #)  $>',?"+   "' 2 4 4 ( 1)x x k x- + = - 3) ,  $9$  .%&  '(  #)  $'$  *&  %$ - #'.:(!  "7);  "'<.=*&  "+'(!  ∈8@AπB#)  $ >',?"+   "' 2 cos 4cos 4 (cos 1)x x k x- + = - 0 $  (6 3C$  #%(  "''<.*&  "+'(!  #)  $>',?"+   "' 4 4 4 4 4 6x x m x x m+ + + + + = 0 3($  (>',?"+   "' 2 cos2 1 sin 2 sin cosx x x x+ - = + $  (D 3  "'"+)/!"'$  #)  $'$  *&   3 2 2 3 3 1 ( ) 2 1 x x x f x x x + + - = + + E:(!   F  "+ 1 (1) 3 F = 3  "'  #'>';" ln5 ln3 2 3 x x dx I e e - = + - ò $  (G 3 ."+='$( (!  " 10 1 2 ( ) 3 3 x+ '$  "'%$',  # 2 9 10 0 1 2 9 10 . ,( R) k a a x a x a x a x a+ + + + + Î $ - /  '!  *&   k a 7?  ""';  8@H=H@ 3&  %&  "#$  "'*$  =')9,  ##.  I"+,?  (J ."+"+$  /E#;  "#,  6"+,?  (7$  "'(!   9)  ?  %(  $%(!  E"+,?  (?  %(  $%(!  E#.  "D"+,?  (',?  "+ ,  #$  (%&  "0.  (#.  :$. "'(!)#$  #'>';"#&"+ $  (K 3  ."+F  >'F  "+.  $%&  1/#'.'$(%(!  8A@39$  88KAD30L(!  >',?"+    "'%,?  "+ .  "83(!  >1)  #9?  ( )  #'.$  "'$  (%(!  9$  ='.$  "+#$  #',   ;#)  $83%!  "%(!  :F  "+G0 2)  ."+='&"++($"9?  ('!  .  $%&  1/M#'.'  "'7F"+ )  %,  "+ 1 1 1 .ABC A B C  9?  ( 1 (0; 3;0), (4;0;0), (0;3;0), (4;0;4)A B C B- 0 a)   .  $%&  #$  #%  "' 1 1 ,A C 0L(!  >',?"+   "'F  #;  );9$  (!  >1)  #9?  ( F  >'F  "+ 1 1 ( )BCC B b) .  (7$   )"+%(!  #)  $ 1 1 A B 0 c) L(!  >',?"+   "'F  >'F  "+83%(N)$'$(%(!  E9$  *."'*."+9?  ( 1 BC 0F  >'F  "+83#F  %,?  "+'F  "+ 1 1 AC $  (%(!  0  "'%&  O$  (%.$  " .  (J ."+"+$  /E#;  "#,  6"+,?  ( 7$  "&apos ;(!   9)  ?   %(  $ %(!  E"+,?  ( ?   %(  $ %(! . );9$   (!  >1)  #9?  ( F  >'F  "+ 1 1 ( )BCC B b) .  ( 7$   )"+ %(!  #)  $ 1 1 A B 0 c) L(!  >',?"+