Another Trig Trick - 12 Integrals, Ep. 11

If you haven't realised already, this whole series is just a lot of weird integration tricks. And here's another one for you.
For the whole series: • 12 Integrals

[@SloomFusion]

the way you explain the procedure is amazing! Yet , i do not understand why you don't have a lot of views..

[@Panure]

Great video, you deserve more views