lwf2fmNaamad cw-j业0 ac ondr。eedx(2ih山1 2 1 2 2 1 d 1 x x − − π 4 2 0 tan d 2π 0 | sin | d x x 2 0 |1 | d − x x 3 1 2 3 1 d 1 x + x 2 e-1 1 d 1 x x − − + 1 2 2 1 e d x x x 1 1 d 5 4 x x x − − 1 2 1 ( | |) d x x x − + e 1 ln dx x ln 2 2 3 0 e dx x x e 1 e ln d x x (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)