. . . -.
. .
. . - -
.
-.
35. . =φ1(), v=φ2() . -, - d(u∙v)/ = udv + vdv
, - - .
, , -, , dv , dx, v, .
- .
1) : = .
2) . - :
3) , : .
4) [a;b], a<b - f(x)dx=y(x), - :
.
26. . (a;b) ƒ() (), ƒ'()≥0 (ƒ"()≤0) x (a;b). 25.7 ( ). ƒ() (a;b) ƒ'()>0 (ƒ'()<0) x(a;b), () (a;b).
28.
.
y = f(x), M M , .. .
, , .
d M , , d M .
24. '=ƒ'() =ƒ() .
ƒ'() , "
, "=(')'.
, , '" ( ƒ'"()). , '"=(y")'
n- ( n- ) (n-1) :
|
|
y(n)=(y(n-1))¢.
.
, (ν (5) ).
.
F(x) f(x) [a, b], :
F¢(x) = f(x).
f(x) , : F(x) + C.
:
:
1.
2.
3.
4.
u, v, w .
.
=
=
=
=
=
=
= ex + C
= sinx + C
= -cosx + C
= tgx + C
= -ctgx + C
=
=
=
34. ( ).
, , x = j(t) dx = j¢(t)dt :
38. )
F(x) - f(x),
.
40. .
, f(x) [a, ¥).
:
, , .
, .