Here is the 2 unit paper.
http://www.boardofstudies.nsw.edu.au/hsc_exams/2016/exams/2016-hsc-maths.pdf
http://www.boardofstudies.nsw.edu.au/hsc_exams/2016/exams/2016-hsc-maths.pdf
Last edited:
Definitely a harder paper than 2014 and 2015!Here is the 2 unit paper.
10≤ y < 200 iircWhat'd people get for 16 b ii?
What'd people get for 16 b ii?
Yeah, that's right.10≤ y < 200 iirc
Tfw forgot t >= 0 and got 0 < y < 200 and got period of tan3x as 2pi/3 rip.10≤ y < 200 iirc
I got 100 but I think my method was not enough for 2/2 marks.What was 16 b iv?
5Also 14 d?
Yep it's y = 100. All it amounts to is that the parabola y(200 - y) (which is concave down obviously since the leading coefficient is negative) has its vertex (hence maximum) at y = 100 (midpoint of the roots).I got 100 but I think my method was not enough for 2/2 marks.
Is this also correct? https://postimg.org/image/t452ixfzz/ Since like dt/dy is the reciprocal of dy/dtYep it's y = 100. All it amounts to is that the parabola y(200 - y) (which is concave down obviously since the leading coefficient is negative) has its vertex (hence maximum) at y = 100 (midpoint of the roots).
It wasn't even a sphere though, did you use the sphere formulaFor 15 a I used wrong equation for volume of a sphere rip