Formulario de Cálculo Diferencial e Integral (Página 1 de 2) Formulario de Cálculo Diferencial e Integral VER.4.9 Jesús Rubí Miranda (jesusrubim@yahoo.com) http://www.geocities.com/calculusjrm/ VALOR ABSOLUTO ⎧a si a ≥ 0 a =⎨ ⎩− a si a < 0 a = −a ⎛ ab = a b ó ∏a a+b ≤ a + b ó n = ∏ ak k ∑ ca k =1 n ∑a k =1 a ⋅a = a k =1 k ∑(a ≤ ∑ ak k =1 k =1 p+q k ∑(a k =1 0 30 45 60 90 sen ctg sec csc 1 1 ∞ ∞ 3 2 3 2 3 2 1 3 2 2 1 1 1 2 1 2 3 1 3 2 2 3 3 2 12 0 0 1 1 ∞ ∞ y = ∠ sen x y = ∠ cos x ⎡ π π⎤ y ∈ ⎢− , ⎥ ⎣ 2 2⎦ y ∈ [ 0, π ] y∈ − 1 y = ∠ ctg x = ∠ tg x k =1 tg 0 cos 0 12 y = ∠ tg x + an = ∑ ak k =1 n n k =1 k =1 + bk ) = ∑ ak + ∑ bk k − ak −1 ) = an − a0 , 2 2 = a pq (a ⋅ b) p n (a + l ) 2 1 − r n a − rl =a = 1− r 1− r = ap ⋅bp n ∑ ar a ⎛a⎞ ⎜ ⎟ = p b ⎝b⎠ p k −1 k =1 a p/q = a p q LOGARITMOS log a N = x ⇒ a = N x log a MN = log a M + log a N M = log a M − log a N N log a N r = r log a N log a 1+ 3 + 5 + log b N ln N log a N = = log b a ln a -0.5 cos (θ + π ) = − cosθ 2 ( a − b ) ⋅ ( a + ab + b ) = a − b ( a − b ) ⋅ ( a3 + a 2 b + ab2 + b3 ) = a 4 − b4 ( a − b ) ⋅ ( a 4 + a3b + a 2 b2 + ab3 + b 4 ) = a5 − b5 2 n 2 ⎞ 3 3 ( a − b ) ⋅ ⎜ ∑ a n − k b k −1 ⎟ = a n − b n ⎝ k =1 ⎠ -4 -2 0 2 4 6 n 8 2.5 0.5 0 -0.5 -1 -1.5 + xk ) csc x sec x ctg x -2 -2.5 -8 -6 -4 -2 0 2 4 6 8 Gráfica 3. Las funciones trigonométricas inversas arcsen x , arccos x , arctg x : n! =∑ x1n1 ⋅ x2n2 n1 !n2 ! nk ! nk k x HIP θ CA cos (α ± β ) = cos α cos β ∓ sen α sen β 1 tg α ± tg β tg (α ± β ) = 1 ∓ tg α tg β sen 2θ = 2sen θ cosθ -2 -3 π radianes=180 CO π⎞ ⎛ sen θ = cos ⎜θ − ⎟ 2⎠ ⎝ sen (α ± β ) = sen α cos β ± cos α sen β -1 ∀n ∈ n ⎛ 2n + 1 ⎞ sen ⎜ π ⎟ = ( −1) ⎝ 2 ⎠ ⎛ 2n + 1 ⎞ cos ⎜ π⎟=0 ⎝ 2 ⎠ ⎛ 2n + 1 ⎞ tg ⎜ π⎟=∞ ⎝ 2 ⎠ 2 0 arc sen x arc cos x arc tg x -2 -1 0 1 2 cos 2θ = cos 2 θ − sen 2 θ 3 e x − e− x 2 e x + e− x cosh x = 2 senh x e x − e − x tgh x = = cosh x e x + e − x 1 e x + e− x ctgh x = = tgh x e x − e − x 1 2 sech x = = cosh x e x + e − x 1 2 = csch x = senh x e x − e − x senh x = senh : n π⎞ ⎛ cosθ = sen ⎜θ + ⎟ 2⎠ ⎝ 4 3 CONSTANTES π = 3.14159265359… e = 2.71828182846… TRIGONOMETRÍA CO 1 sen θ = cscθ = HIP sen θ CA 1 cosθ = secθ = HIP cosθ sen θ CO 1 tg θ = ctg θ = = cosθ CA tg θ tg (θ + nπ ) = tg θ sen ( nπ ) = 0 tg ( nπ ) = 0 1 + ( 2n − 1) = n 2 n cos (θ + nπ ) = ( −1) cos θ cos ( nπ ) = ( −1) 2 1.5 ⎛n⎞ n! , k≤n ⎜ ⎟= ⎝ k ⎠ ( n − k )!k ! n ⎛n⎞ n ( x + y ) = ∑ ⎜ ⎟ xn−k y k k =0 ⎝ k ⎠ ( x1 + x2 + tg (θ + π ) = tg θ sen (θ + nπ ) = ( −1) sen θ Gráfica 2. Las funciones trigonométricas csc x , sec x , ctg x : k =1 ( a + b) ⋅ ( a − b) = a − b 2 ( a + b ) ⋅ ( a + b ) = ( a + b ) = a 2 + 2ab + b2 2 ( a − b ) ⋅ ( a − b ) = ( a − b ) = a 2 − 2ab + b 2 ( x + b ) ⋅ ( x + d ) = x 2 + ( b + d ) x + bd ( ax + b ) ⋅ ( cx + d ) = acx 2 + ( ad + bc ) x + bd ( a + b ) ⋅ ( c + d ) = ac + ad + bc + bd 3 ( a + b ) = a3 + 3a 2b + 3ab2 + b3 3 ( a − b ) = a3 − 3a 2b + 3ab2 − b3 2 ( a + b + c ) = a 2 + b2 + c 2 + 2ab + 2ac + 2bc 2 tg ( −θ ) = − tg θ tg (θ + 2π ) = tg θ sen x cos x tg x sen α ⋅ cos β = cos ( −θ ) = cosθ sen (θ + π ) = − sen θ -6 5 tg α + tg β ctg α + ctg β FUNCIONES HIPERBÓLICAS n n ALGUNOS PRODUCTOS a ⋅ ( c + d ) = ac + ad tg α ⋅ tg β = 0 -2 -8 n! = ∏ k log10 N = log N y log e N = ln N sen ( −θ ) = − sen θ 1 + ctg 2 θ = csc2 θ cos (θ + 2π ) = cosθ -1.5 1 2 ( n + n) 2 k =1 n 1 k 2 = ( 2n3 + 3n 2 + n ) ∑ 6 k =1 n 1 4 3 k = ( n + 2n3 + n 2 ) ∑ 4 k =1 n 1 k 4 = ( 6n5 + 15n 4 + 10n3 − n ) ∑ 30 k =1 sen (α ± β ) cos α ⋅ cos β tg 2 θ + 1 = sec2 θ sen θ + cos2 θ = 1 sen (θ + 2π ) = sen θ n 1 1 = 2sen (α + β ) ⋅ cos (α − β ) 2 2 1 1 = 2 sen (α − β ) ⋅ cos (α + β ) 2 2 1 1 = 2 cos (α + β ) ⋅ cos (α − β ) 2 2 1 1 = −2sen (α + β ) ⋅ sen (α − β ) 2 2 1 ⎡sen (α − β ) + sen (α + β ) ⎦⎤ 2⎣ 1 sen α ⋅ sen β = ⎣⎡cos (α − β ) − cos (α + β ) ⎦⎤ 2 1 cos α ⋅ cos β = ⎣⎡cos (α − β ) + cos (α + β ) ⎦⎤ 2 0 2 -1 ∑k = tg α ± tg β = arc ctg x arc sec x arc csc x IDENTIDADES TRIGONOMÉTRICAS y ∈ 0, π 0.5 = cos α − cos β -2 -5 1 k =1 cos α + cos β 2 -1 2 n 3 π π 1.5 n sen α + sen β sen α − sen β 4 0 1 y ∈ [ 0, π ] x 1 ⎡ π π⎤ y = ∠ csc x = ∠ sen y ∈ ⎢− , ⎥ x ⎣ 2 2⎦ Gráfica 1. Las funciones trigonométricas: sen x , cos x , tg x : = c ∑ ak Gráfica 4. Las funciones trigonométricas inversas arcctg x , arcsec x , arccsc x : 1 y = ∠ sec x = ∠ cos k n θ n ∑ ⎣⎡ a + ( k − 1) d ⎦⎤ = 2 ⎣⎡ 2a + ( n − 1) d ⎦⎤ (a ) ⎛ par n n n ap = a p−q aq p k +1 k =1 n EXPONENTES q ⎞ a n − k b k −1 ⎟ = a n − b n ∀ n ∈ ⎠ SUMAS Y PRODUCTOS ( a + b ) ⋅ ⎜ ∑ ( −1) ⎝ k =1 impar n n k =1 n ∑ c = nc a ≥0y a =0 ⇔ a=0 p q ⎛ n ⎞ k +1 ( a + b ) ⋅ ⎜ ∑ ( −1) a n− k b k −1 ⎟ = a n + b n ∀ n ∈ ⎝ k =1 ⎠ a1 + a2 + a ≤ a y −a≤ a p Jesús Rubí M. ( a + b ) ⋅ ( a 2 − ab + b2 ) = a3 + b3 ( a + b ) ⋅ ( a3 − a 2 b + ab2 − b3 ) = a 4 − b4 ( a + b ) ⋅ ( a 4 − a3b + a 2 b2 − ab3 + b4 ) = a5 + b5 ( a + b ) ⋅ ( a5 − a 4 b + a3b2 − a 2 b3 + ab4 − b5 ) = a 6 − b6 2 tg θ tg 2θ = 1 − tg 2 θ 1 sen 2 θ = (1 − cos 2θ ) 2 1 cos 2 θ = (1 + cos 2θ ) 2 1 − cos 2θ tg 2 θ = 1 + cos 2θ cosh : tgh : ctgh : → → [1, ∞ → −1,1 − {0} → −∞ , −1 ∪ 1, ∞ sech : → 0,1] csch : − {0} → − {0} Gráfica 5. Las funciones hiperbólicas senh x , cosh x , tgh x : 5 4 3 2 1 0 -1 -2 se nh x co sh x tgh x -3 -4 -5 0 5 FUNCIONES HIPERBÓLICAS INV ( ( ) ) senh −1 x = ln x + x 2 + 1 , ∀x ∈ cosh −1 x = ln x ± x 2 − 1 , x ≥ 1 1 ⎛1+ x ⎞ tgh −1 x = ln ⎜ ⎟, x < 1 2 ⎝ 1− x ⎠ 1 ⎛ x +1 ⎞ ctgh −1 x = ln ⎜ ⎟, x > 1 2 ⎝ x −1 ⎠ ⎛ 1 ± 1 − x2 ⎞ ⎟, 0 < x ≤ 1 sech −1 x = ln ⎜ ⎜ ⎟ x ⎝ ⎠ 2 ⎛ ⎞ x 1 1 + ⎟, x ≠ 0 csch −1 x = ln ⎜ + ⎜x x ⎟⎠ ⎝ Formulario de Cálculo Diferencial e Integral (Página 2 de 2) IDENTIDADES DE FUNCS HIP cosh 2 x − senh 2 x = 1 1 − tgh 2 x = sech 2 x ctgh x − 1 = csch x 2 senh ( − x ) = − senh x cosh ( − x ) = cosh x tgh ( − x ) = − tgh x senh ( x ± y ) = senh x cosh y ± cosh x senh y cosh ( x ± y ) = cosh x cosh y ± senh x senh y tgh x ± tgh y 1 ± tgh x tgh y senh 2 x = 2senh x cosh x tgh ( x ± y ) = cosh 2 x = cosh x + senh x 2 tgh 2 x = 2 2 tgh x 1 + tgh 2 x 1 ( cosh 2 x − 1) 2 1 2 cosh x = ( cosh 2 x + 1) 2 cosh 2 x − 1 tgh 2 x = cosh 2 x + 1 senh 2 x = tgh x = senh 2 x cosh 2 x + 1 e x = cosh x + senh x e − x = cosh x − senh x OTRAS ax + bx + c = 0 2 −b ± b 2 − 4ac 2a b 2 − 4ac = discriminante ⇒ x= exp (α ± iβ ) = eα ( cos β ± i sen β ) si α , β ∈ LÍMITES 1 lim (1 + x ) x = e = 2.71828... x →0 x ⎛ 1⎞ lim ⎜1 + ⎟ = e x →∞ ⎝ x⎠ sen x =1 lim x →0 x 1 − cos x =0 lim x →0 x ex −1 =1 lim x →0 x x −1 =1 lim x →1 ln x Dx f ( x ) = DERIVADAS f ( x + ∆x ) − f ( x ) df ∆y = lim = lim ∆x → 0 ∆x dx ∆x→0 ∆x d (c) = 0 dx d ( cx ) = c dx d ( cx n ) = ncxn−1 dx d du dv dw (u ± v ± w ± ) = ± ± ± dx dx dx dx d du ( cu ) = c dx dx d dv du ( uv ) = u + v dx dx dx d dw dv du ( uvw) = uv + uw + vw dx dx dx dx d ⎛ u ⎞ v ( du dx ) − u ( dv dx ) ⎜ ⎟= dx ⎝ v ⎠ v2 d n du u ) = nu n −1 ( dx dx dF dF du = ⋅ (Regla de la Cadena) dx du dx du 1 = dx dx du dF dF du = dx dx du dy dy dt f 2′ ( t ) ⎪⎧ x = f1 ( t ) = = donde ⎨ dx dx dt f1′( t ) ⎪⎩ y = f 2 ( t ) DERIVADA DE FUNCS LOG & EXP d du dx 1 du = ⋅ ( ln u ) = dx u u dx d log e du ⋅ ( log u ) = dx u dx log e du d ( log a u ) = a ⋅ a > 0, a ≠ 1 dx u dx d u du e ) = eu ⋅ ( dx dx d u du a ) = a u ln a ⋅ ( dx dx d v du dv + ln u ⋅ u v ⋅ u ) = vu v −1 ( dx dx dx DERIVADA DE FUNCIONES TRIGO d du ( sen u ) = cos u dx dx d du ( cos u ) = − sen u dx dx d du ( tg u ) = sec2 u dx dx d du ( ctg u ) = − csc2 u dx dx d du ( sec u ) = sec u tg u dx dx d du ( csc u ) = − csc u ctg u dx dx d du ( vers u ) = sen u dx dx DERIV DE FUNCS TRIGO INVER d du 1 ⋅ ( ∠ sen u ) = dx 1 − u 2 dx d du 1 ⋅ ( ∠ cos u ) = − dx 1 − u 2 dx d 1 du ⋅ ( ∠ tg u ) = dx 1 + u 2 dx d 1 du ( ∠ ctg u ) = − 2 ⋅ dx 1 + u dx d du ⎧ + si u > 1 1 ( ∠ sec u ) = ± 2 ⋅ ⎨ dx u u − 1 dx ⎩ − si u < −1 d du ⎧− si u > 1 1 ⋅ ⎨ ( ∠ csc u ) = ∓ dx u u 2 − 1 dx ⎩+ si u < −1 d du 1 ⋅ ( ∠ vers u ) = dx 2u − u 2 dx Jesús Rubí M. DERIVADA DE FUNCS HIPERBÓLICAS d du senh u = cosh u dx dx d du cosh u = senh u dx dx d du tgh u = sech 2 u dx dx d du ctgh u = − csch 2 u dx dx d du sech u = − sech u tgh u dx dx d du csch u = − csch u ctgh u dx dx DERIVADA DE FUNCS HIP INV 1 d du ⋅ senh −1 u = dx 1 + u 2 dx -1 ±1 d du ⎪⎧+ si cosh u > 0 ⋅ , u >1 ⎨ cosh −1 u = -1 dx ⎪⎩− si cosh u < 0 u 2 − 1 dx d 1 du ⋅ , u <1 tgh −1 u = dx 1 − u 2 dx d du 1 ⋅ , u >1 ctgh −1 u = dx 1 − u 2 dx −1 ∓1 d du ⎪⎧− si sech u > 0, u ∈ 0,1 ⋅ ⎨ sech −1 u = −1 dx u 1 − u 2 dx ⎪⎩ + si sech u < 0, u ∈ 0,1 d 1 du −1 csch u = − ⋅ , u≠0 dx u 1 + u 2 dx INTEGRALES DEFINIDAS, PROPIEDADES Nota. Para todas las fórmulas de integración deberá agregarse una constante arbitraria c (constante de integración). ∫ { f ( x ) ± g ( x )} dx = ∫ f ( x ) dx ± ∫ g ( x ) dx ∫ cf ( x ) dx = c ⋅ ∫ f ( x ) dx c ∈ ∫ f ( x ) dx = ∫ f ( x ) dx + ∫ f ( x ) dx ∫ f ( x ) dx = −∫ f ( x ) dx ∫ f ( x ) dx = 0 m ⋅ ( b − a ) ≤ ∫ f ( x ) dx ≤ M ⋅ ( b − a ) b b b a a a b b a a b c b a a c b a a b a a b a ⇔ m ≤ f ( x ) ≤ M ∀x ∈ [ a, b ] , m, M ∈ ∫ f ( x ) dx ≤ ∫ g ( x ) dx b b a a ⇔ f ( x ) ≤ g ( x ) ∀x ∈ [ a, b ] ∫ f ( x ) dx ≤ ∫ f ( x ) dx si a < b b b a a INTEGRALES ∫ adx =ax ∫ af ( x ) dx = a ∫ f ( x ) dx ∫ ( u ± v ± w ± ) dx = ∫ udx ± ∫ vdx ± ∫ wdx ± ∫ udv = uv − ∫ vdu ( Integración por partes ) u n +1 n ∫ u du = n + 1 n ≠ −1 du ∫ u = ln u INTEGRALES DE FUNCS LOG & EXP ∫ e du = e u u ∫ ctgh udu = ln senh u ∫ sech udu = ∠ tg ( senh u ) ∫ csch udu = − ctgh ( cosh u ) a u ⎧a > 0 ∫ a du = ln a ⎨⎩a ≠ 1 u au ⎛ −1 1 ⎞ ∫ ua du = ln a ⋅ ⎜⎝ u − ln a ⎟⎠ u ∫ ue du = e ( u − 1) ∫ ln udu =u ln u − u = u ( ln u − 1) u u u 1 ( u ln u − u ) = ( ln u − 1) ln a ln a 2 u ∫ u log a udu = 4 ⋅ ( 2log a u − 1) u2 ∫ u ln udu = 4 ( 2ln u − 1) INTEGRALES DE FUNCS TRIGO ∫ log a ∫ tgh udu = ln cosh u udu = ∫ sen udu = − cos u ∫ cos udu = sen u ∫ sec udu = tg u ∫ csc udu = − ctg u ∫ sec u tg udu = sec u ∫ csc u ctg udu = − csc u ∫ tg udu = − ln cos u = ln sec u ∫ ctg udu = ln sen u ∫ sec udu = ln sec u + tg u ∫ csc udu = ln csc u − ctg u 1 = ln tgh u 2 INTEGRALES DE FRAC du 1 u ∫ u 2 + a 2 = a ∠ tg a 1 u = − ∠ ctg a a 1 u−a du 2 2 = ln ∫ u 2 − a 2 2a u + a ( u > a ) 1 a+u du 2 2 ∫ a 2 − u 2 = 2a ln a − u ( u < a ) INTEGRALES CON ∫ 2 du a2 − u2 = ∠ sen = −∠ cos 2 ∫ 2 udu = 2 2 ∫ u sen udu = sen u − u cos u ∫ u cos udu = cos u + u sen u INTEGRALES DE FUNCS TRIGO INV ∫ ∠ sen udu = u∠ sen u + 1 − u ∫ ∠ cos udu = u∠ cos u − 1 − u ∫ ∠ tg udu = u∠ tg u − ln 1 + u ∫ ∠ ctg udu = u∠ ctg u + ln 1 + u ∫ ∠ sec udu = u∠ sec u − ln ( u + u 2 2 du a2 ± u2 du + 2 2 −1 = u∠ sec u − ∠ cosh u ∫ ∠ csc udu = u∠ csc u + ln ( u + u2 −1 ) ) = u∠ csc u + ∠ cosh u INTEGRALES DE FUNCS HIP 2 ) + f( n) ( x0 )( x − x0 ) n! 2! n : Taylor f '' ( 0 ) x 2 f ( x ) = f ( 0) + f '( 0) x + 2! ( 0 ) x n : Maclaurin n! x 2 x3 xn ex = 1 + x + + + + + n! 2! 3! x3 x 5 x 7 x 2 n −1 n −1 sen x = x − + − + + ( −1) 3! 5! 7! ( 2n − 1)! + cos x = 1 − + f( n) x2 x4 x6 + − + 2! 4! 6! + ( −1) n −1 x 2n−2 ( 2n − 2 )! n x 2 x3 x 4 n −1 x + − + + ( −1) n 2 3 4 2 n −1 x3 x5 x7 n −1 x ∠ tg x = x − + − + + ( −1) 3 5 7 2n − 1 ln (1 + x ) = x − ) f '' ( x0 )( x − x0 ) f ( x ) = f ( x0 ) + f ' ( x0 )( x − x0 ) + 2 2 ( = ln u + u 2 ± a 2 ( ∫ tg udu = tg u − u ∫ ctg udu = − ( ctg u + u ) ∫ senh udu = cosh u ∫ cosh udu = senh u ∫ sech udu = tgh u ∫ csch udu = − ctgh u ∫ sech u tgh udu = − sech u ∫ csch u ctgh udu = − csch u du u 2 ± a2 u a 1 u = ln a a + a2 ± u 2 1 a ∫ u u 2 − a 2 = a ∠ cos u 1 u = ∠ sec a a u 2 a2 u 2 2 2 ∫ a − u du = 2 a − u + 2 ∠ sen a 2 u 2 a 2 2 2 2 2 ∫ u ± a du = 2 u ± a ± 2 ln u + u ± a MÁS INTEGRALES e au ( a sen bu − b cos bu ) au e sen bu du = ∫ a2 + b2 eau ( a cos bu + b sen bu ) au ∫ e cos bu du = a 2 + b2 1 1 3 ∫ sec u du = 2 sec u tg u + 2 ln sec u + tg u ALGUNAS SERIES ∫u u 1 − sen 2u 2 4 u 1 2 ∫ cos udu = 2 + 4 sen 2u ∫ sen u a 2