Sr Examen

Integral de cos(xlogt) dx

Límites de integración:

interior superior
v

Gráfico:

interior superior

Definida a trozos:

Solución

Ha introducido [src]
  1                 
  /                 
 |                  
 |  cos(x*log(t)) dx
 |                  
/                   
0                   
$$\int\limits_{0}^{1} \cos{\left(x \log{\left(t \right)} \right)}\, dx$$
Integral(cos(x*log(t)), (x, 0, 1))
Respuesta (Indefinida) [src]
  /                       //sin(x*log(t))                 \
 |                        ||-------------  for log(t) != 0|
 | cos(x*log(t)) dx = C + |<    log(t)                    |
 |                        ||                              |
/                         \\      x           otherwise   /
$$\int \cos{\left(x \log{\left(t \right)} \right)}\, dx = C + \begin{cases} \frac{\sin{\left(x \log{\left(t \right)} \right)}}{\log{\left(t \right)}} & \text{for}\: \log{\left(t \right)} \neq 0 \\x & \text{otherwise} \end{cases}$$
Respuesta [src]
/sin(log(t))                                   
|-----------  for Or(And(t >= 0, t < 1), t > 1)
<   log(t)                                     
|                                              
\     1                   otherwise            
$$\begin{cases} \frac{\sin{\left(\log{\left(t \right)} \right)}}{\log{\left(t \right)}} & \text{for}\: \left(t \geq 0 \wedge t < 1\right) \vee t > 1 \\1 & \text{otherwise} \end{cases}$$
=
=
/sin(log(t))                                   
|-----------  for Or(And(t >= 0, t < 1), t > 1)
<   log(t)                                     
|                                              
\     1                   otherwise            
$$\begin{cases} \frac{\sin{\left(\log{\left(t \right)} \right)}}{\log{\left(t \right)}} & \text{for}\: \left(t \geq 0 \wedge t < 1\right) \vee t > 1 \\1 & \text{otherwise} \end{cases}$$
Piecewise((sin(log(t))/log(t), (t > 1)∨((t >= 0)∧(t < 1))), (1, True))

    Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.