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How's everyone going with further maths revision?

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Dolche:
For the matrices section of VCAA 2006 Exam 2 Q1c: Explain why the matrix PQ is not defined.

PQ is defined. Was that a mistake made by VCAA?

hifer:

--- Quote from: "Dolche" ---For the matrices section of VCAA 2006 Exam 2 Q1c: Explain why the matrix PQ is not defined.

PQ is defined. Was that a mistake made by VCAA?
--- End quote ---


Nah, P is of order 3x1 and Q is 2x3, since the no. of columns of P does not equal to the no. of rows of Q, PQ is not defined.

Dolche:
oh s***!! i must be blink to not see the dots in P :oops:

hifer:
hehe.. this is why i'm so scared of making careless mistakes in further... i always lose 1-2 marks coz of this !! ><

Dolche:
lets hope we dont make this kind of stupid mistakes on the day *fingers crossed*

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