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sin(x)tan^3(x)

Integral of sin(x)tan^3(x) dx

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The solution

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  1                  
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 |            3      
 |  sin(x)*tan (x) dx
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$$\int\limits_{0}^{1} \sin{\left(x \right)} \tan^{3}{\left(x \right)}\, dx$$
Integral(sin(x)*tan(x)^3, (x, 0, 1))
The answer (Indefinite) [src]
  /                                                                                        
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 |           3             3*log(1 + sin(x))   3*log(-1 + sin(x))       sin(x)             
 | sin(x)*tan (x) dx = C - ----------------- + ------------------ - -------------- + sin(x)
 |                                 4                   4                      2            
/                                                                   -2 + 2*sin (x)         
$$\int \sin{\left(x \right)} \tan^{3}{\left(x \right)}\, dx = C + \frac{3 \log{\left(\sin{\left(x \right)} - 1 \right)}}{4} - \frac{3 \log{\left(\sin{\left(x \right)} + 1 \right)}}{4} + \sin{\left(x \right)} - \frac{\sin{\left(x \right)}}{2 \sin^{2}{\left(x \right)} - 2}$$
The graph
The answer [src]
  3*log(1 + sin(1))   3*log(1 - sin(1))       sin(1)             
- ----------------- + ----------------- - -------------- + sin(1)
          4                   4                     2            
                                          -2 + 2*sin (1)         
$$\frac{3 \log{\left(1 - \sin{\left(1 \right)} \right)}}{4} - \frac{3 \log{\left(\sin{\left(1 \right)} + 1 \right)}}{4} + \sin{\left(1 \right)} - \frac{\sin{\left(1 \right)}}{-2 + 2 \sin^{2}{\left(1 \right)}}$$
=
=
  3*log(1 + sin(1))   3*log(1 - sin(1))       sin(1)             
- ----------------- + ----------------- - -------------- + sin(1)
          4                   4                     2            
                                          -2 + 2*sin (1)         
$$\frac{3 \log{\left(1 - \sin{\left(1 \right)} \right)}}{4} - \frac{3 \log{\left(\sin{\left(1 \right)} + 1 \right)}}{4} + \sin{\left(1 \right)} - \frac{\sin{\left(1 \right)}}{-2 + 2 \sin^{2}{\left(1 \right)}}$$
-3*log(1 + sin(1))/4 + 3*log(1 - sin(1))/4 - sin(1)/(-2 + 2*sin(1)^2) + sin(1)
Numerical answer [src]
0.443421576297111
0.443421576297111
The graph
Integral of sin(x)tan^3(x) dx

    Use the examples entering the upper and lower limits of integration.