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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Specialist Mathematics => Topic started by: periphrasticobfuscation on October 17, 2020, 11:26:00 am

Title: Using determinant for linear dependence
Post by: periphrasticobfuscation on October 17, 2020, 11:26:00 am

Hi all,

Does anyone know whether we can use the determinant to find whether 3 vectors in R^3 are linearly independent/dependent in Exam 1?

Our Maths teacher says we probably shouldn't because it's not in the study design, but I don't understand why we have to take the long way around. I honestly thought the whole point was to find the quickest and most efficient way to solve problems

Thanks all!

Title: Re: Using determinant for linear dependence
Post by: S_R_K on October 17, 2020, 12:28:05 pm

It is a valid method and will be (and has been) accepted on end of year exams.