Integral of trigonometric function gives different answer
126630
How to compute the integral of trigonometic function with multiple angle
127756
Integrate $\int \sin (2x) \cos (2x)\,dx$
144717
Integral change that I don't understand
6852
Integral of $\int \frac{x \sin{x} \cos{x}}{(a^2 \sin^2 x + b^2 \cos^2 x)^2} dx $
127343
Trigonometric integral involving the fractional part function
4693
what is the$ \int \sin (x^2) \, dx$?
58947
Integral of $\int\sin^{3}xdx$
28053
Integral of $\sin(e^t)dt$
79633
Calculating the integral $\int_{-\infty}^{\infty} x\sin(x)/(x^2+1)^2 dx$
115759
Evaluating this integral : $ \int \frac {1-7\cos^2x} {\sin^7x \cos^2x} dx $
31552
A contradictory integral: $\int \sin x \cos x \, \mathrm dx$
47779
Why does this integral have a complex component?
146870
Integrals depending on a parameter: $\int_{0}^{\pi/2} \ln(a^2\sin^2{x} + \cos^2{x})dx $
81825
Orthogonality of sine and cosine integrals.
156215
Integral $\int\frac{2x^2}{2x\cos(2x)+(x^2-1)\sin(2x)} \mathrm d x$
63137
Problem with Indefinite Integral $\int\frac {\cos^4x}{\sin^3x} dx$
129675
How to integrate $\int \frac{1}{\sin^4x + \cos^4 x} \,dx$?