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What you always wanted to know about Lego but were afraid to ask.
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Perhaps because y is running from 0 to a and not from a to 0 ?
(ah, you answered your own question :smile: )
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Repaired my rusty ##\TeX## : \bf \color{red} works in math mode, \color{red} \bf does not.
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Hi,
I think you are confusing yourself with this linear independence.
Note that (5) is a vector equation (##=\vec 0##)
Pick any of A...
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$$\vec b -\vec a+\lambda(a-2\vec b+\vec c)=\dfrac{\mu}{2}(\vec b+\vec c-2\vec a)\Rightarrow (\lambda-1-\mu)\vec a+(1-2\lambda-\mu/2)\vec...
