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Integral of sinxcosx÷(cos^2x+3cosx+2)dx dx

Limits of integration:

from to
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
 POST_GRBEK_SMALL_pi                                         
 -------------------                                         
          2                                                  
          /                                                  
         |                                                   
         |                                  1                
         |          sin(x)*cos(x)*----------------------*1 dx
         |                           2                       
         |                        cos (x) + 3*cos(x) + 2     
         |                                                   
        /                                                    
        0                                                    
$$\int\limits_{0}^{\frac{POST_{GRBEK SMALL \pi}}{2}} \sin{\left(x \right)} \cos{\left(x \right)} \frac{1}{\cos^{2}{\left(x \right)} + 3 \cos{\left(x \right)} + 2} \cdot 1\, dx$$
Integral(sin(x)*cos(x)*1/(cos(x)^2 + 3*cos(x) + 2), (x, 0, POST_GRBEK_SMALL_pi/2))
The answer (Indefinite) [src]
  /                                                                                                                       
 |                                                                          /       2              \                      
 |                         1                       3*log(4 + 2*cos(x))   log\2 + cos (x) + 3*cos(x)/   3*log(2 + 2*cos(x))
 | sin(x)*cos(x)*----------------------*1 dx = C - ------------------- - --------------------------- + -------------------
 |                  2                                       2                         2                         2         
 |               cos (x) + 3*cos(x) + 2                                                                                   
 |                                                                                                                        
/                                                                                                                         
$$\int \sin{\left(x \right)} \cos{\left(x \right)} \frac{1}{\cos^{2}{\left(x \right)} + 3 \cos{\left(x \right)} + 2} \cdot 1\, dx = C + \frac{3 \log{\left(2 \cos{\left(x \right)} + 2 \right)}}{2} - \frac{3 \log{\left(2 \cos{\left(x \right)} + 4 \right)}}{2} - \frac{\log{\left(\cos^{2}{\left(x \right)} + 3 \cos{\left(x \right)} + 2 \right)}}{2}$$
The answer [src]
               /       /POST_GRBEK_SMALL_pi\\                 /       /POST_GRBEK_SMALL_pi\\
-log(2) - 2*log|2 + cos|-------------------|| + 2*log(3) + log|1 + cos|-------------------||
               \       \         2         //                 \       \         2         //
$$\log{\left(\cos{\left(\frac{POST_{GRBEK SMALL \pi}}{2} \right)} + 1 \right)} - 2 \log{\left(\cos{\left(\frac{POST_{GRBEK SMALL \pi}}{2} \right)} + 2 \right)} - \log{\left(2 \right)} + 2 \log{\left(3 \right)}$$
=
=
               /       /POST_GRBEK_SMALL_pi\\                 /       /POST_GRBEK_SMALL_pi\\
-log(2) - 2*log|2 + cos|-------------------|| + 2*log(3) + log|1 + cos|-------------------||
               \       \         2         //                 \       \         2         //
$$\log{\left(\cos{\left(\frac{POST_{GRBEK SMALL \pi}}{2} \right)} + 1 \right)} - 2 \log{\left(\cos{\left(\frac{POST_{GRBEK SMALL \pi}}{2} \right)} + 2 \right)} - \log{\left(2 \right)} + 2 \log{\left(3 \right)}$$

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