= f () = g(x) (, b) ¢, :
¢ = 1/ ¢.
.
c¢=0, =const | (ex)¢=ex |
(xn)¢=nxn-1 | (sin x)¢=cos x |
(ax)¢=ax ln a | (cos x)¢= -sin x |
(ln x)¢= | (tg x)¢= |
(log a x)¢= | (ctg x)¢= - |
(arcsin x)¢= | (arctg x)¢= |
(arccos x)¢= - | (arcctg x)¢= - |
1: 2
¢ = 3 sin x
:
.
:
u =3, v = sin x
u¢ =3 v¢ =cos x
(uv)¢ = u ¢v + u v¢, ¢ = 3 (sin x + x s x)
dy = 3 (sin x + x cos x) dx.
. , .
: ¢, ¢¢, ¢¢¢, , (n) ..
2
= 3
: ¢ = 32, : ¢¢ = 6 , : ¢¢¢= 6, : (4) = 0 y(n) 0.
4.13.
:
dn y = f (n) (x) dxn
S = f(t). t v(t) = S¢ (t). v(t) t. :
a = v¢ (t) = S¢¢(t).
.
3 2.
:
S = 3 2t + t3
t = 3.
:
v = S¢ (t) = -2 + 3t2, t = 3, v(3)= 25.
:
= S¢¢(t) = 6t, t = 3, (3) = 18.
: t = 3 25 ., 18 .