![definite integrals - Why can't Wolfram Alpha calculate $\int_0^{2\pi}\sqrt{(a-\cos\theta)^2+\sin^2\theta}\ d\theta$? - Mathematics Stack Exchange definite integrals - Why can't Wolfram Alpha calculate $\int_0^{2\pi}\sqrt{(a-\cos\theta)^2+\sin^2\theta}\ d\theta$? - Mathematics Stack Exchange](https://i.stack.imgur.com/ws7CG.png)
definite integrals - Why can't Wolfram Alpha calculate $\int_0^{2\pi}\sqrt{(a-\cos\theta)^2+\sin^2\theta}\ d\theta$? - Mathematics Stack Exchange
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How to show step-by-step solutions for Laplace transforms? - Online Technical Discussion Groups—Wolfram Community
![real analysis - How can I prove the Wolfram Alpha result $\int_0^{\infty} \frac{(\sin x)^2}{x^2-\pi ^2} dx=-\frac1{2\pi}$? - Mathematics Stack Exchange real analysis - How can I prove the Wolfram Alpha result $\int_0^{\infty} \frac{(\sin x)^2}{x^2-\pi ^2} dx=-\frac1{2\pi}$? - Mathematics Stack Exchange](https://i.stack.imgur.com/MKj7Z.png)