Find integral $\int\frac{1}{\cos x}dx$
18841
Ways to evaluate $\int \sec \theta \, \mathrm d \theta$
90339
Integral involving Cosine function
6573
Compute $\int \frac{\sin(x)}{\sin(x)+\cos(x)}\mathrm dx$
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
123802
Is the integral of $\frac{1}{x}$ equal to $\ln(x)$ or $\ln(|x|)$?
53438
I need assistance in integrating $ \frac{x \sin x}{1+(\cos x)^2}$
95068
Integral of $\frac{1}{2x}$
51489
Simplifying the integral $\int\frac{dx}{(3 + 2\sin x - \cos x)}$ by an easy approach
45872
Integration: $\int\frac{1}{(x^2+x+1)^{1/2}} dx$
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
79361
What is the integral of 1/x?
6830
Find $\int\frac1x\sqrt\frac{1-x}{1+x}\ dx$
64417
Integration of $\int \frac{x^2+20}{(x \sin x+5 \cos x)^2}dx$
127343
Trigonometric integral involving the fractional part function
148826
Integral of $ 1 \, / \, (1 + a \, \cos(x) )$
89346
How do you integrate $\int \frac{1}{a + \cos x} dx$?
21464
Finding the integral $\int_0^1 \frac{x^a - 1}{\log x} dx$