Be an arbitrary vector in R 3 . Use Gaussian elimination to determine which vectors b are in span{u1, u2, u3}. (Hint: You might look back at Problem 8 in Conceptual Problems #1.) Without further calculation, conclude that span{u1, u2, u3} is a plane in R 3 and identify an equation of the plane in the form ax1 + bx2 + cx3 = 0.

.mp4 files, because, video

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: