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Formulario EDO************, Resumos de Matemática

EDO formulário básico, INTEGRAIS, DERIVADAS

Tipologia: Resumos

2021

Compartilhado em 19/05/2021

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DERIVADAS

  • f (x )= u.v f ' (x)=u'.v+u.v'
  • f (x )= u.v.w f ' (x)=u'.v.w+u.v'.w+u.v.w'
  • f ( x)= v^ u f '( x ) =u'vv− 2 uv^ '
  • (^) f (x )= un f ' (x) =n.un−^1 u'
  • f ( x)= au f ' (x) =au.ln.a.u'
  • f (x )= eu f ' (x) =eu.u'
  • f ( x)= lnu f '( x )=u^ u'
  • f (x )= logau f '( x )=u.^ uln^ 'a
  • f (x )= cosu f ' (x)=−u'.senu
  • f ( x)=senu f ' (x)=u'cosu
  • f (x )=tgu f ' (x)=u'. sec^2 u
  • f ( x)= cotu f ' (x)=−u'.cos sec^2 u
  • f ( x)= secu f ' (x)=u'.secu.tgu
  • f (x )= cossecu f ' (x)=−u'.cossecu.cotu
  • f ( x)= uv

'() ('ln .')

' ().^1 .' .'. ln

fx u v u u^ v u

fx vu u uv u

v v v

  • f (x )=arcsenu 2 1

'( )^ '

u f x^ u −

  • f ( x)= arccosu 2 1

u f x^ u −

=^ −

  • f ( x)=arctgu 2 1

'( )^ '

u f x^ u

INTEGRAIS

Trigonométricas

  • • • • • • • • • • • • •

Exp. e log.

dx^ dy^ =P(x)y^2 +Q(x)y+R(x) y =y 0 + z

y= C 1 e^ λ^1 x^ +C 2 e^ λ^2 x+C 3 e^ λ^3 x+...+C n e^ λn^ x

  • y =(C 1 +C 2 x+C 3 x^2 +... +C nxn−^1 )e^ x
  • complexas conjugadas ( a ±bi)

y =eax [ C 1 cos bx+C 2 senbx]

t t t t t

dxd^ y d dt^ y d dt^ y d^ dyt^ e

dxd^ y d dt^ y d^ dyt^ e

dt

e^ dy

dx

dy

dx^ dt^ e

ax b ae

(^3333223) (^22222)

− − − −

y ( x)=C 1 xm^1 +C 2 xm^2

  • y( x)=(C 1 +C 2 ln(x))x^ m
  • complexas conjugadas (^) ( a ±bi)

y ( x)=xa[^ C 1 cos(blnx)+C 2 sen(blnx )]

ke x^ Ce^ αx kxn^ (n= 0 , 1 ,...) C n x^ n+ Cn − 1 xn−^1 +...+C 1 x+C 0 Ksen x K cos x C cosxCsenx 1 + 2 ke sen x ke cos x x x e x^ (C 1 cosx+C 2 senx ) u 1 = W^1 W(x(). xr)(^ x^ )dx, u 2 = W^2 W(x(). xr)(^ x^ )dx, .... u (^) n = WnW(x(). xr)(^ x^ )dx (, ,..., ) ( ) 11 21 1 ' 11 ' 22 ' 1 2 Wx y y y y y y y y y Wyy y n n n n n n n = = − − − 21 1 ' 22 ' 1 1

− −

n n n n n y y y y y y W , 11 1 11 '^ ' 2 1

− −

n n n n n y y y y y y W , ...., 1

11 21 11 ' 22 ' − −

n n n y y y y y y W

  • O (^) D^1 −^ au =eax^ e−^ ax.u.dx ∈ℜ
  • ( D− a)u=Du−a.u= (^) d^ dux^ −au ∈ℜ
  • D^ n 1 , x,x^2 , ,xn−^1 c 0 +c 1 x+c 2 x^2 + +cn − 1 xn−^1 x( Dn^ ). ( D− )^ n e x^ ,xex,x^2 ex, ,xn−^1 e^ x [ D^2 − 2 D+(^2 +^2 )]^ n

e senxxesenxxesenx x esen x

e xxe xxe x x e x

x x x n x x x a n x

α α α α α α α α 2 1 2 1

,cos , cos , cos , cos ,

− −

λ 1 , λ 2 , , λn ( −∞,∞ ) X= c 1 k 1 e^ λ^1 t^ +c 2 k 2 e^ λ^2 t+ +cnk n e^ λn^ t

λ 1 = α+i β α β

X 1 = k 1 e^ λ^1 t X 2 =k 1 e^ λ^1 t

X 1 =( Re { k 1 } cos β t−Im{ k 1 }sin βt) e^ αt

X 2 =( Im { k 1 } cos β t+Re{ k 1 }sin βt) eat

X 1 =k 1 e^ λ^1 t

X 2 =k 1 te^ λ^1 t^ +k 2 e^ λ^2 t

m m^ t^ m e^ t k m^ em^ t m e k^ t m X k^ t^ λ^ λ+ +^ λ = − + − − 1 − 2 ( 1 )! ( 2 )! 2 2 1 1 λ 1 X 2 =Kte^ λ^1 t^ +Pe^ λ^1 t A IP K

A I K

1 1

dX dt (^) =A( t)X+F(t ) X ' (^) p =AXp+f(t )

X p = φ(t ) φ^ −^1 (t)F(t)dt

∞ = ∞ = ∞ = ∞ = = + + + + = = + + + + ∞ = = + + ∞ =

− − = + + ∞ = ∞ = − −

  • − + − + +
  • = + + ≤
  • − = + + + + = + + + + + + = − + − + ≤ ≤
  • = + + + + +^ + + ≤ ≤ ≤^ ≤^ ≤