An E4/Band 6 cutoff is the minimum RAW mark required to get an aligned mark of 90 in the subject.
https://rawmarks.info/science/chemistry/
This website shares the raw marks from past years. The band 6 cutoff is usually 82-83 but it depends on the cohort's performance and difficulty of the...
How did you guys go about finding the angle in projectile?
I found dy/dx on the cartesian equation at the x-coord for A, then used angle between two lines with y=-x. Got 45° tho
cot^2(kpi/(2m+1)) question
However, I am unsure whether it is necessary to show x=cot^2(kpi/(2m+1)) is not a solution to p'(x) hence no multiple roots for p(x) meaning p(x) has m distinct roots