Three problems | Problem Solving Matters

Three more maths problems that we recorded for the AMSP's Problem Solving Matters course, featuring Dr Vicky Neale.
More AMSP resources: amsp.org.uk/
More Oxford Maths resources: www.maths.ox.ac.uk/
More Vicky: people.maths.ox.ac.uk/neale/
⏩ Fast forward to a problem
0:00 Intro
0:24 MAT 2011 Q1J
5:01 Quadratic problem
11:02 MAT 2014 Q3
Errors in this video:
- at 07 37 Vicky says "7 over 4" out loud, but means "minus 7 over 4". The written mathematics is correct.

[@jibran8410]

For the last part, As n gets large, 2/(2n-1) is essentially 1/n so you get a