Math, Linear Algebra, Education, Mathematics, Mathematics Education.
v₁ and v₂, but v₁ is also a combination of v₂ and w; it’s just a little less obvious. v₁ is a linear combination of v2 and w One way to get around this is to imagine a way to remove an amount of paint from a mixture (aka adding a negative amount). We can then express purple as 1(red) + 1(blue), and