Archive for the ‘2009 Maths’ Category

FREE Download: 2009 NSW BOS Mathematics Extension 1 Solutions

Thursday, November 19th, 2009

FREE Download: 2009 NSW BOS Mathematics Extension 1 Solutions – PDF 83KB

FREE Download: 2009 NSW BOS Mathematics Solutions

Tuesday, November 17th, 2009

FREE Download: 2009 NSW BOS Mathematics Solutions – PDF 78KB

FREE Download: 2009 NSW BOS General Mathematics Solutions

Saturday, November 14th, 2009

FREE Download: 2009 NSW BOS General Mathematics Solutions – PDF 68KB

Thanks to Sue Gilbert for pointing out that the correct solution to 2009 Q 27c is:
Mary has the better chance.
For Jane, Pr(wins at least one) = 1 – Pr(wins none) = 1 – (0.99)(0.99) = 0.0199.

FREE Download: 2009 VCAA Mathematical Methods (CAS) Examination 2 Solutions

Tuesday, November 10th, 2009

FREE Download: 2009 VCAA Mathematical Methods (CAS) Exam 2 Solutions – PDF 77KB

FREE Download: 2009 VCAA Mathematical Methods Examination 2 Solutions

Monday, November 9th, 2009

FREE Download: 2009 VCAA Mathematical Methods Exam 2 Solutions – PDF 71KB

Note: Thanks to aw for pointing out that in Q3cii, p = 1- 0.8985 = 0.1015, answer is 0.3483.

FREE Download: 2009 VCAA Mathematical Methods Examination 1 Solutions

Friday, November 6th, 2009

FREE Download: 2009 VCAA Mathematical Methods Exam 1 Solutions – PDF 40KB

FREE Download: 2009 VCAA Further Mathematics Examination 2 Solutions

Wednesday, November 4th, 2009

FREE Download: 2009 VCAA Further Mathematics Exam 2 – PDF 364KB

GM (see below) and David Phillips (Tintern Schools) pointed out that Business Module Q4c) The greater depreciation occurs with the reducing balance method. This greater amount of depreciation is 22000-10953.17=$11046.83.
The question does NOT ask for the difference in the two methods.

FREE Download: 2009 VCAA Specialist Mathematics Examination 2 Solutions

Tuesday, November 3rd, 2009

FREE Download: 2009 VCAA Specialist Mathematics Exam 2 Solutions – PDF 271KB

Note: Thanks to John Howes, Matthew Flinders Girls’ Secondary College, for pointing out an error in Section 1 Multiple choice Q13. The time t seconds should read t minutes in the question, otherwise all the choices are incorrect.

FREE Download: 2009 VCAA Further Mathematics Examination 1 Solutions

Tuesday, November 3rd, 2009

FREE Download: 2009 VCAA Further Mathematics Exam 1 Solutions – PDF 62KB

FREE Download: 2009 NSW BOS Mathematics Extension 2 Solutions

Sunday, November 1st, 2009

FREE Download: 2009 NSW BOS Mathematics Extension 2 Solutions – PDF 104KB

Note:

Thanks to Richard Hoang for pointing out that in Q3aiii the sharp point at x = 0 should be a local minimum turning point, and the maxima should be closer to x = +/- 2 than 0.

Thanks to Andrew Badawy for pointing out that Question 2d asked for arg(z-1) in [-pi/4, pi/4], but arg(z) in [-pi/4, pi/4] was sketched.