Recent content by roids

Thanks so much jbunnii, you made my day. Love the notation by alchemista. Have a good day!

Thanks for the responses fine gentlemen. The book with the solutions is David Lay - Linear Algebra, fourth edition. Can you please take a look at the same problem someone asked here, where the answerer said that no, b is not a linear combination...

Hi guys. I've solved an exercise but the solution sheet says what doesn't make sense to me. Could you please help with this problem? Determine if vector b is a linear combination of vectors a1, a2, a3. a1=[1, -2, 0], a2=[0, 1, 2], a3=[5, -6, 8], b=[2, -1, 6]. b is a linear combination...