Why is $\int 2 \cos x \sin x \neq \int \sin 2x$?
31922
Integral of $\sin x \cos x$ using two methods differs by a constant?
51489
Simplifying the integral $\int\frac{dx}{(3 + 2\sin x - \cos x)}$ by an easy approach
58947
Integral of $\int\sin^{3}xdx$
518
What is the integral of $\int e^x\,\sin x\,\,dx$?
14279
Indefinite Integral with "sin" and "cos": $\int\frac{3\sin(x) + 2\cos(x)}{2\sin(x) + 3\cos(x)} \; dx $
156215
Integral $\int\frac{2x^2}{2x\cos(2x)+(x^2-1)\sin(2x)} \mathrm d x$
123392
How does $cos(x) = \frac{\vec{v} \cdot \vec{w}}{|\vec{v}| \cdot |\vec{w}|}$ make sense?
41133
What is the integral of function $f(x) = (\sin x)/x$
41447
tough integral involving $\sin(x^2)$ and $\sinh^2 (x)$
17188
Simplify $\cos(n \pi)$ and $\sin(n \pi)$ when n is an integer
90313
Integrate $\int_0^\pi{{x\sin x}\over{1+\cos^2x}}dx$.
47779
Why does this integral have a complex component?
99457
How to integrate $\int x\sin {(\sqrt{x})}\, dx$
37097
Integral $\int \frac{\sqrt{\sin x}}{\sqrt{\sin x} + \sqrt{\cos x}} dx$
51991
What is the integral of $e^{\cos x}$
51787
Evaluate $\int \cos(3x) \sin(2x) \, dx$.
96367
Intuition of Addition Formula for Sine and Cosine