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1/cos^2(3x)

Integral of 1/cos^2(3x) dx

Limits of integration:

from to
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The graph:

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Piecewise:

The solution

You have entered [src]
  1               
  /               
 |                
 |        1       
 |  1*--------- dx
 |       2        
 |    cos (3*x)   
 |                
/                 
0                 
$$\int\limits_{0}^{1} 1 \cdot \frac{1}{\cos^{2}{\left(3 x \right)}}\, dx$$
Integral(1/cos(3*x)^2, (x, 0, 1))
The answer (Indefinite) [src]
  /                               
 |                                
 |       1               sin(3*x) 
 | 1*--------- dx = C + ----------
 |      2               3*cos(3*x)
 |   cos (3*x)                    
 |                                
/                                 
$$\int 1 \cdot \frac{1}{\cos^{2}{\left(3 x \right)}}\, dx = C + \frac{\sin{\left(3 x \right)}}{3 \cos{\left(3 x \right)}}$$
The graph
The answer [src]
oo
$$\infty$$
=
=
oo
$$\infty$$
Numerical answer [src]
1606.32063557435
1606.32063557435
The graph
Integral of 1/cos^2(3x) dx

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