A Level Maths exam question on integration by substitution

This is the first video of a more juicy exam question, shot very simply off my screen. A bit different to my usual teaching videos - let me know what you think in the comments! Is it helpful? Do you want more and if so are there any questions you would like me to look at? https://www.buymeacoffee.com/starfishmaths www.starfishmaths.com [email protected]