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- Improper integral
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How to use it?
- Integral of d{x}:
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Integral of cot^5x
- Integral of sin(x)*log(x)/x
- Integral of 1/cos(3x)^2
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Integral of dx/(4sinx+3cosx+5)
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Identical expressions
- one /cos(3x)^ two
- 1 divide by co sinus of e of (3x) squared
- one divide by co sinus of e of (3x) to the power of two
- 1/cos(3x)2
- 1/cos3x2
- 1/cos(3x)²
- 1/cos(3x) to the power of 2
- 1/cos3x^2
- 1 divide by cos(3x)^2
- 1/cos(3x)^2dx
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Similar expressions
- ((1/(cos3x)^2))-(1/sqrt(9x^2-4))
Integral of 1/cos(3x)^2 dx
The solution
You have entered
[src]
pi -- 4 / | | 1 | --------- dx | 2 | cos (3*x) | / 0
$$\int\limits_{0}^{\frac{\pi}{4}} \frac{1}{\cos^{2}{\left(3 x \right)}}\, dx$$
Integral(1/(cos(3*x)^2), (x, 0, pi/4))
The answer (Indefinite)
[src]
/ | | 1 sin(3*x) | --------- dx = C + ---------- | 2 3*cos(3*x) | cos (3*x) | /
$$\int \frac{1}{\cos^{2}{\left(3 x \right)}}\, dx = C + \frac{\sin{\left(3 x \right)}}{3 \cos{\left(3 x \right)}}$$
The graph
Use the examples entering the upper and lower limits of integration.