A = 2*(pi)*(r)^2+2*(pi)*h=2*(pi)*(r)^2+2*(pi)*(r^2)/k, since r=kh
dA/dr = 4(pi)r+4(pi)r/k
Btw i havent seen the question, just judging by what he wrote up there, this is what should happen
YOu have to apply throughout year 12, each scholarship usually has different deadlines. So try asking your career advisor and search the internet for the scholarships that you can apply for in your chosen field.
There's some sort of introductory lecture for maple.
http://www.maths.unsw.edu.au/students/current/Week0S1.pdf
Also see for wednesday, is says something about math1151 is that meant to say math1141?
Thanks.