Integral de x/(sin(x)^2*cos(x)^2) dx
Solución
Respuesta (Indefinida)
[src]
/ 4/x\ 2/x\ 3/x\ / 2/x\\ / /x\\ /x\ / /x\\ /x\ / /x\\ /x\ 3/x\ / /x\\ 3/x\ / /x\\ 3/x\ / /x\\ / 2/x\\ /x\
| x*tan |-| 6*x*tan |-| 4*tan |-|*log|1 + tan |-|| 2*log|1 + tan|-||*tan|-| 2*log|-1 + tan|-||*tan|-| 2*log|tan|-||*tan|-| 2*tan |-|*log|1 + tan|-|| 2*tan |-|*log|-1 + tan|-|| 2*tan |-|*log|tan|-|| 4*log|1 + tan |-||*tan|-|
| x x \2/ \2/ \2/ \ \2// \ \2// \2/ \ \2// \2/ \ \2// \2/ \2/ \ \2// \2/ \ \2// \2/ \ \2// \ \2// \2/
| --------------- dx = C + ---------------------- + ---------------------- - ---------------------- - -------------------------- - ------------------------ - ------------------------- - ---------------------- + ------------------------- + -------------------------- + ---------------------- + -------------------------
| 2 2 /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\ /x\ 3/x\
| sin (x)*cos (x) - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-| - 2*tan|-| + 2*tan |-|
| \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/ \2/
/
$$\int \frac{x}{\sin^{2}{\left(x \right)} \cos^{2}{\left(x \right)}}\, dx = C + \frac{x \tan^{4}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} - \frac{6 x \tan^{2}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} + \frac{x}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} + \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} - 1 \right)} \tan^{3}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} - \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} - 1 \right)} \tan{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} + \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} + 1 \right)} \tan^{3}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} - \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} + 1 \right)} \tan{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} - \frac{4 \log{\left(\tan^{2}{\left(\frac{x}{2} \right)} + 1 \right)} \tan^{3}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} + \frac{4 \log{\left(\tan^{2}{\left(\frac{x}{2} \right)} + 1 \right)} \tan{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} + \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} \right)} \tan^{3}{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}} - \frac{2 \log{\left(\tan{\left(\frac{x}{2} \right)} \right)} \tan{\left(\frac{x}{2} \right)}}{2 \tan^{3}{\left(\frac{x}{2} \right)} - 2 \tan{\left(\frac{x}{2} \right)}}$$
3
2*(pi*I + log(1 - tan(1/2)))*tan(1/2) 2*tan (1/2)*(pi*I + log(1 - tan(1/2)))
oo - ------------------------------------- + --------------------------------------
3 3
-2*tan(1/2) + 2*tan (1/2) -2*tan(1/2) + 2*tan (1/2)
$$\infty + \frac{2 \left(\log{\left(1 - \tan{\left(\frac{1}{2} \right)} \right)} + i \pi\right) \tan^{3}{\left(\frac{1}{2} \right)}}{- 2 \tan{\left(\frac{1}{2} \right)} + 2 \tan^{3}{\left(\frac{1}{2} \right)}} - \frac{2 \left(\log{\left(1 - \tan{\left(\frac{1}{2} \right)} \right)} + i \pi\right) \tan{\left(\frac{1}{2} \right)}}{- 2 \tan{\left(\frac{1}{2} \right)} + 2 \tan^{3}{\left(\frac{1}{2} \right)}}$$
=
3
2*(pi*I + log(1 - tan(1/2)))*tan(1/2) 2*tan (1/2)*(pi*I + log(1 - tan(1/2)))
oo - ------------------------------------- + --------------------------------------
3 3
-2*tan(1/2) + 2*tan (1/2) -2*tan(1/2) + 2*tan (1/2)
$$\infty + \frac{2 \left(\log{\left(1 - \tan{\left(\frac{1}{2} \right)} \right)} + i \pi\right) \tan^{3}{\left(\frac{1}{2} \right)}}{- 2 \tan{\left(\frac{1}{2} \right)} + 2 \tan^{3}{\left(\frac{1}{2} \right)}} - \frac{2 \left(\log{\left(1 - \tan{\left(\frac{1}{2} \right)} \right)} + i \pi\right) \tan{\left(\frac{1}{2} \right)}}{- 2 \tan{\left(\frac{1}{2} \right)} + 2 \tan^{3}{\left(\frac{1}{2} \right)}}$$
oo - 2*(pi*i + log(1 - tan(1/2)))*tan(1/2)/(-2*tan(1/2) + 2*tan(1/2)^3) + 2*tan(1/2)^3*(pi*i + log(1 - tan(1/2)))/(-2*tan(1/2) + 2*tan(1/2)^3)
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.