482 Rozwiązania i odpowiedzi
16.70. .v#2, x^— 1; J = |x2 + * + 31n|.v +11 + 21n|* — 2|.
16.73. I=\xi-2xi +4*-|V6arctgV|x.
16.74. / = §jc3-2x2 + 5* + ln|* — 2| +2 In|jc — 11.
16.75. / = §ln|;c + 3|+^]n|;t—1| —251n|x —i|.
16.76. / = §ln|*- l| — ^ln|A: + l|-+-^ln|A' — 2|-^ ln|.x+2|.
16.77. / = | In (*2 +1) — j ln (ar2 + 3).
16.78. / = 2 ln (*2 — 4x + 29) 4- 3 ln (*2 — 2x + 5) + 6 arctg —-—I- 8 arctg —— ■
16.79. *#1, xi= -1 ; / = ln|*2 +4|-ł-fln|jc-ł-11 — jln|jr-l| + iarctg±jc.
16.80. / = ln|.*| +21n|* +1| + 31n|* + 2| +41n|x + 3|.
16.81. *^0; / = 41n|*|+ln|x2 +l|---arctg*.
16.82. / = —\ ln|*2-n2|—jln|*|.
*2+* + l 1 2* + l
16.85. x^2, x=£-2, J = 21n|*2 —4|+iln)*2+4|+^arctg|*.
x -|-2
16.86. / = 31n|*-l|+61n|*2+4* + 29|+^arctg"—
16.88. /=■
16.89. / = -
16.91. / = —
1 x+2 i 3 x+2
16 (*2+4* + 8)2 + 128 ’ a2+4*+ 8
5 3
16.92. /=-—-n — ln|x—1| 4-——— +21n|x4-l| .
2(x-l)
2(* + l)
16.93. /
_ 1 /I . +
64\,2 °x2-
4-4x4-8
x-2'\
X -h2
4» + 8+arC,E — +arC‘8 2
(x-l)3 (x-l)2 x—1
+ 51n |x— 11.
16.95. I
-|- 2x -ł~ 5 x 4* 1 x —
- 4- arctg —-+arctg 2x + 5 2 2
x-t)
-1
1
16.96. / =---=--+71n|x-l|4-21n|x4-3|
(x-l)3 (x-l)2 x—1 11 11
4-^ln |x2 4-4| — arctg £x .
5
16.97. / =
-1
2(x2 4-4) -1
I6'98' 1 2(x—l)2 2(x— 1)
-f ln |x-l|4-£ln|x24-l|-arctgx.
17.7. x> —f; /=|V3+4x.
17.9. x/-|; I = f(2x4-1)2/5.
17.11. / = ^(12x2 —x—l)\/3x—1 . 17.13. / = ^V(i-5x)3 (f(l-5x)-f).
25 v V* V5
17.15. x> —|; / = f(x—2)(2x4-3) 2/3
DO ROZDZIAŁU XVII
17.6. x>-\, /«|(2x4-l)3/2(1).
17.8. x±\; J = ±(3x-4)2/3.
17.10. I=f (x2 —x—12) Vx—4 .
17.12. /=§V(24-3x)3(i(24-3x)-§).
17.14. /=f(x2-x-12)vG^4.
17.16. x# —2 ; (5x2 — 12x4-36)(x4-2)
17.17. x> —2; / = ^(27x2- 12x4-143)V3x + 1.
17.18. x>-f; /=^(10x24-3x-18)V2x + 3.
3/4
17.19. I = -^ln
y/a
Vx4-a — V a
17.21. / = 2y/x + \n
V x4fl4V a
y/x—l
2 lx—a
17.20. I = -j= arctg /-.
Jn V O
Vx4-1 — 1
s/x + l
'Ja
17.22. / = 2Vr+x4-ln
Vx4-14-1
(') w rozwiązaniach pomijamy stałą C.
16*