Integral of $\sin x \cos x$ using two methods differs by a constant?
29370
Trig integral $\int ( \cos{x} + \sin{x}\cos{x}) \, dx $
90573
Indefinite integral $\int(\sin x)^2/(x\cdot\cos x-\sin x)^2\,dx$
18672
Integrate $\int_{0}^{\pi}{\frac{x\cos{x}}{1+\sin^{2}{x}}dx}$
38005
Integral of $\sin (x^3)dx$
99139
Pulling constants out of integrations
75562
How to integrate $\int x^2 \sin^2(x)dx$
50688
Integrating Factor Method. Why Can We Set the Constant of Integration to Zero?
40235
How would I differentiate $\sin{x}^{\cos{x}}?$
64417
Integration of $\int \frac{x^2+20}{(x \sin x+5 \cos x)^2}dx$
130668
Evaluating the integral with trigonometric integrand
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
29076
Two different solutions to integral
138230
Evaluate $ \int^{\frac{\pi}{2}}_0 \frac{\sin x}{\sin x+\cos x}\,dx $ using substitution $t=\frac{\pi}{2}-x$
6571
A Challenging Integral $\int_0^{\frac{\pi}{2}}\log \left( x^2+\log^2(\cos x)\right)dx$
137648
What is the mistake in doing integration by this method?
129947
Integral of $\log(\sin(x))$ using contour integrals
90313
Integrate $\int_0^\pi{{x\sin x}\over{1+\cos^2x}}dx$.