for the chart just use check marks. solve fully

6. Complete the following chart by indicating the final form of the vector operations: [5] Vector Scalar Meaningless (ux v) x Projab (a . b) (c x d) 2(a . b) - 5v Projab xu + (b - u) | Projuv tal+b . u Thinking and Inquiry (10 marks) 7. Given that u = (1, a, 5) and v = (b, 3, 2) and v x u = (19, 22, 5), [6] a. find a and b. b. prove that u is perpendicular to v