2021 NSW ESA Mathematics Extension 1 Solutions – PDF 99 KB

2021 NSW ESA Mathematics Extension 2 Solutions – PDF 121 KB

2021 NSW ESA Mathematics Advanced Solutions – PDF 103 KB

Thanks to Lyn Harris for checking and pointing out mistakes in the solutions.

2021 NSW ESA Mathematics Standard 1 Solutions – PDF 134 KB

Thanks to Lyn Harris for checking and pointing out mistakes.

2021 VCAA Physics Exam Solutions – PDF 100 KB

Thanks to Brendon Beard from Kerang Technical High School for pointing out the following: In Q13 of multiple choice section A, the wave speed is 18 m/s, but the measurements on the wave graph are in cm.  So that makes the wavelength 0.06 and not 6. Frequency is therefore 18/0.06 or 300Hz.  The answer should be C.

Thanks to Philip Noonan for pointing out the following mistakes. In Section B, Q8c The itute solution, 1.04E06 J, appears to express the answer as the area under the graph, alone. Possibly considering the graph as gravitational force (not field) vs distance. Q19a the itute solution does not appear to go and identify the specific energy transition in the atom. That is, either state n=4 to n=3, (and/or mark it on a diagram) as asked in the question.

2021 VCAA Specialist Mathematics Exam 2 Solutions – PDF 102 KB

2021 VCAA Mathematical Methods Exam 2 Solutions – PDF 119 KB

Thanks to John Dowsey from the University of Melbourne for pointing out that in the solution to MC Q17 an ‘n’ is missing in the third term of the inequality.

Thanks to Leigh Thompson for pointing out a mistake in the solution to Question 2f Section B of the 2021 VCAA Mathematical Methods Exam 2 Solutions. It should be plus instead of minus between the two definite integrals.

2021 VCAA Specialist Mathematics Exam 1 Solutions – PDF 49 KB

2021 VCAA Mathematical Methods Exam 1 Solutions – PDF 59 KB

Thanks to Leigh Thompson for pointing out missing answers Q3a [-2,2] and Q3b pi.

Thanks to Raymond Rozen for pointing out that absolute instead of local should be used to describe the maximum in Q8b.

2021 VCAA Further Mathematics Exam 2 Solutions – PDF 125 KB

Thanks to Amy Devereaux for pointing out mistakes in DATA 3b, 5b and FINANCE 8c.

Thanks to Darren Fitzpatrick of Beaconhills College for pointing out that Module 4 Q2b should include 0 in the answer.