Q5 part (c): http://filestore.aqa.org.uk/subjects...W-QP-JUN07.PDF
I can do it (I got the correct answer by inspection).
But I tried another method and for some reason (probably overlooking something stupid), I didn't the correct answer. This what I did:
The quadrilateral connecting ,, and the point of intersection (call it ) is a square.
Therefore and the angle .
Therefore the required complex number is ?
EDIT: Oh, I forgot to add on onto the argument. So the method does work .
Quick FP2 question Watch
- Thread Starter
Last edited by IrrationalRoot; 20-04-2016 at 16:30.
- 20-04-2016 16:25
- 20-04-2016 18:39
Bumping this off the unanswered list. :-)