Maths ext 1 question on vector (1 Viewer)

Everwinter · Feb 4, 2021

How to do c) in the following question?

Qeru · Feb 4, 2021

Everwinter said:
How to do c) in the following question?

View attachment 30196

Expand out a and b:

$p\cdot c-p \cdot b -a\cdot c +a\cdot b=0$

$p\cdot a-p \cdot c -b\cdot a +b\cdot c=0$

Then simply add these two equations:

$p \cdot a -p\cdot b -a\cdot c +b\cdot c=0$

$\(p-c) \cdot (a-b)=0$ by factoring

Everwinter · Feb 4, 2021

Thank you

Maths ext 1 question on vector (1 Viewer)

Everwinter

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Qeru

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Everwinter

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