Yes, I'm so gonna do this kinda thing tomorrow.
& maybe doodle smileys all over my answer script...

(But hey, really, I know how to do the above question!! We use that nifty little theorem Mr Pythagoras came up with centuries ago, right right?!! I know :D :D Somebody invite me to Mensa now!)

The ERP question today was funny! Haha. Was smiling the whole time :D

Anyway, all the best for da prelims, comrades! We'll make it out (alive) !