Previous Page Next Page Page 6 of 6 Question 6 (6 points) a) Suppose A = (7, 6). Determine a vector with unit length in the opposite direction to A . b) If B = (k, 2), where k is a real number. Determine all values of k such that A - B=5 [6 marks, Exp. C2] Please do not answer in the Quiz tool. Answer all questions on paper and scan assignment as a single file to the dropbox. Question 7 (4 points) Solve for a, b, and c: (a, b, -1) + (3, 2, c) - 2(-1, a, -3) = (-4, 1, 2c) [4 marks, Exp. C2]