16.50. 7arctg

x —3

16.51. 7 = arctg(3x-l).

2x—\

16.52.    7=|ln|x² —a: + 1|-f^arctg—y=r-.

V3

16.53.    7 = ln|2x²-2x + l| +arctg(2x — 1).

16.54.    I = \n\x² -2x + 5\ +~arctg

16.55.    7 = lnjx²+2x-f-10| —4arctg

jc — 1

2

x + l x *“ 4

16.56. 7 = ln|x² — 8x4-25)-4arctg —.

16.57. / = |ln|x²-f4x + 8|“arctg

x + 2

16.58. 7 = |ln|x² —3| +^/3 ln

:+V3

16.59. 7 = |ln|x²+3|+2_x/3arctg-y=.

\/3

16.60.    7 = 31n|x²-i-4;c + 13| —4arctg

x—2

16.61.    /=51n|x²—4x+20| —óarctg —•

16.62. /=2 ln | x² - 6x+101 + 7 arctg (x - 3).

16.63. /=§*—£ln|2+3*|.    16.64. J = ±

16.65. I = 2x -1 ln | x²+6x + 251 - — arctg    •

—^\/60 arctg

16.66. I— —31n|*+2| -ł-2lnjjc—4| +81n|x—7|. 29 —30*+6*²

16.67. /=

3(*-2)³

+ln|^r—2|.

16.68. /=fln|x-2|+||ln|A:²+3|+^= arctg

16.69. J=| arctg x +

x—2 2 ( x'² +1)