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November 01, 2025, 10:23:28 am
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Author Topic: Multiplying Matrices by hand  (Read 813 times)  Share 

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MJRomeo81

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Multiplying Matrices by hand
« on: September 11, 2011, 07:16:42 pm »
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When asked to evaluate a matrix in an exam do VCAA expect the student to show full working out (by hand), or is writing down the steps good enough (and then solving the problem on calculator)?
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abeybaby

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Re: Multiplying Matrices by hand
« Reply #1 on: September 11, 2011, 07:44:02 pm »
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There are never ANY marks for arithmetic, and hence, no vcaa doesn't expect you to write out steps for matrix multiplication. you can just write the answer
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MJRomeo81

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Re: Multiplying Matrices by hand
« Reply #2 on: September 12, 2011, 12:26:02 am »
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Excellent. This will help me to save time in the exam.

Thanks for the reply!
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Currently working in the IT Industry as an Oracle DBA (State Government)

Murphy was an optimist

Bachelor of Information Technology @ La Trobe (Melbourne) - Completed 2014
WAM: 91.96
The key, the whole key, and nothing but the key, so help me Codd.

Subjects I tutored during my time at LTU:
CSE2DBF (Database Fundamentals)
CSE1IS (Information Systems)
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“If I had an hour to solve a problem I'd spend 55 minutes defining the problem and 5 minutes thinking about solutions.”
― Albert Einstein

Ematuro

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Re: Multiplying Matrices by hand
« Reply #3 on: September 14, 2011, 06:05:33 pm »
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So do we actually need to know how to multiply matrices by hand? Or is it all CAS
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paulsterio

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Re: Multiplying Matrices by hand
« Reply #4 on: September 14, 2011, 08:47:10 pm »
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in methods you might, cause you might get a transformation matrix question in exam 1 - highly likely (or a steady state matrix question)

but for further, both exams are tech, so no you don't have to know how to multiply matrices by hand, but its not that hard to be able to :)
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