Just to simplify it more ..it's not a necessity .in the last step, why did you multiply and divide with square root 2 ?
Yeah how was it? Fine paper but not enough time. Still did well enough to get an A* - best case scenario would be 71, worst case scenario would be 68 so I'll lose 5-6 marks I'm guessing.Welp, finally done with my exams.
Anyone else did 32 today?