strange result with trigonometric triple integral
40512
Usage of Assuming for Integration
150843
Evaluation of $\int_0^{\pi/4} \sqrt{\tan x} \sqrt{1-\tan x}\,\,dx$
71982
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
37097
Integral $\int \frac{\sqrt{\sin x}}{\sqrt{\sin x} + \sqrt{\cos x}} dx$
90313
Integrate $\int_0^\pi{{x\sin x}\over{1+\cos^2x}}dx$.
31922
Integral of $\sin x \cos x$ using two methods differs by a constant?
144717
Integral change that I don't understand
127343
Trigonometric integral involving the fractional part function
24808
How to evaluate the integral $\int \sqrt{1+\sin(x)} dx$
98787
Calculation of $\int \sqrt{\tan x+2}dx$
4693
what is the$ \int \sin (x^2) \, dx$?
138847
Tricky trigonometric sum evaluation
34650
Explain why $\int_0^\infty\frac{\sin{4x}}{x}\prod\limits_{k=1}^n \cos\left(\frac{x}{k}\right) dx\approx\frac{\pi}{2}$
106587
Calculation of an integral with a Bessel function
86811
Help understanding a concept in multiple integrals
38005
Integral of $\sin (x^3)dx$
81825
Orthogonality of sine and cosine integrals.