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November 18, 2019, 11:31:32 am

Author Topic: Sample solutions to QCAA's sample papers  (Read 193 times)

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RuiAce

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Sample solutions to QCAA's sample papers
« on: September 15, 2019, 10:08:38 pm »
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Remember to register here for FREE to ask any questions you may come across in your QCE studies!

To get a better feel for how your exams will be administered, I will release solutions to the sample papers QCAA have recently released. For Maths Methods, the papers can be accessed here.

Note that these solutions serve only as samples and are not endorsed by any other party.

Paper 1 (Technology-free)

Multiple choice
See post immediately below re: Q4!


Questions 11-13


Questions 14-16


Questions 17-18


Paper 2 (Technology-active)

--TBD--
« Last Edit: October 20, 2019, 12:35:16 pm by RuiAce »

Specialist_maths

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Re: Sample solutions to QCAA's sample papers
« Reply #1 on: October 19, 2019, 11:21:28 pm »
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Re: Question 4
https://www.qcaa.qld.edu.au/downloads/senior-qce/mathematics/snr_specialist_maths_20_ea_smple_mc_question_p1.pdf

The Queensland syllabus refers to phi as the altitude angle. In Question 4, the angle subtended by the altitude of OA above the xy-plane is AOB (as per the QCAA solutions).

This matches the 'everyday' use of the word altitude.
https://en.wikipedia.org/wiki/Azimuth#/media/File:Azimuth-Altitude_schematic.svg
The newly published textbooks have also gone with this definition (see attached image).

However: This does not mach the traditional mathematical convention of using phi for the polar angle (AOC).

I agree Rui, it's frustrating to have different conventions (eg: the ISO uses phi for azimuth).
Teacher of 2020 Seniors: Specialist Mathematics + Mathematical Methods
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RuiAce

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Re: Sample solutions to QCAA's sample papers
« Reply #2 on: October 20, 2019, 12:34:49 pm »
+1
-snip
Appreciate the input heaps! :)

Yeah, it irks me a lot because it's not said traditional mathematical convention. I understand it for General maths and latitudes of the Earth, but I really would've preferred the traditional for Spesh.