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integral de (12)/((x^2-6x+13)^2)

Solución

\int \frac{12}{( x ^{2} - 6 x + 13 ) ^{2}} d x

\frac{3}{4} (arctan (\frac{1}{2} (x - 3)) + \frac{1}{2} sin (2 arctan (\frac{1}{2} (x - 3)))) + C

Pasos de solución

\int \frac{12}{( x ^{2} - 6 x + 13 ) ^{2}} d x

Sacar la constante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 12 \cdot \int \frac{1}{( x ^{2} - 6 x + 13 ) ^{2}} d x

Completar el cuadrado

x^{2} - 6 x + 13 : (x - 3)^{2} + 4

= 12 \cdot \int \frac{1}{( ( x - 3 ) ^{2} + 4 ) ^{2}} d x

Aplicar integración por sustitución

: \int \frac{1}{( u ^{2} + 4 ) ^{2}} d u

= 12 \cdot \int \frac{1}{( u ^{2} + 4 ) ^{2}} d u

Aplicar integración por sustitución

= 12 \cdot \int \frac{1}{8 ( v ^{2} + 1 ) ^{2}} d v

Sacar la constante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 12 \cdot \frac{1}{8} \cdot \int \frac{1}{( v ^{2} + 1 ) ^{2}} d v

Aplicar integración por sustitución trigonométrica

: \int \frac{1}{sec ^{4} ( w ) cos ^{2} ( w )} d w

= 12 \cdot \frac{1}{8} \cdot \int \frac{1}{sec ^{4} ( w ) cos ^{2} ( w )} d w

Re-escribir usando identidades trigonométricas

= 12 \cdot \frac{1}{8} \cdot \int \frac{1 + cos ( 2 w )}{2} d w

Sacar la constante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 12 \cdot \frac{1}{8} \cdot \frac{1}{2} \cdot \int 1 + cos (2 w) d w

Aplicar la regla de la suma:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= 12 \cdot \frac{1}{8} \cdot \frac{1}{2} (\int 1 d w + \int cos (2 w) d w)

\int 1 d w = w

\int cos (2 w) d w = \frac{1}{2} sin (2 w)

= 12 \cdot \frac{1}{8} \cdot \frac{1}{2} (w + \frac{1}{2} sin (2 w))

Sustitución hacia atrás

= 12 \cdot \frac{1}{8} \cdot \frac{1}{2} (arctan (\frac{x - 3}{2}) + \frac{1}{2} sin (2 arctan (\frac{x - 3}{2})))

Simplificar

12 \cdot \frac{1}{8} \cdot \frac{1}{2} (arctan (\frac{x - 3}{2}) + \frac{1}{2} sin (2 arctan (\frac{x - 3}{2}))) : \frac{3}{4} (arctan (\frac{1}{2} (x - 3)) + \frac{1}{2} sin (2 arctan (\frac{1}{2} (x - 3))))

= \frac{3}{4} (arctan (\frac{1}{2} (x - 3)) + \frac{1}{2} sin (2 arctan (\frac{1}{2} (x - 3))))

Agregar una constante a la solución

= \frac{3}{4} (arctan (\frac{1}{2} (x - 3)) + \frac{1}{2} sin (2 arctan (\frac{1}{2} (x - 3)))) + C

\int (x^{2} - 9)^{3} (2 x) d x

y = 8 x, (16, 32)

\frac{\partial}{\partial x} (x + \frac{1}{x})

\frac{\partial}{\partial x} ((x - 1)^{2} \cdot (y + 4)^{2})

y^{^{''}} + 4 y^{^{'}} + 4 y = e^{- 2 t}