If |= 3, |= 4, and the angle between and is 35°, find lxv.(five marks) a. 12 c. 6.88 d. √12 b. 9.83 5. If - 15, 1-11, and the angle between and is 125°, find [proj, (five marks) a. 94.64 c. 6.31 d. 8.6 b. 1 6. If a = [1, 2, 3] and 5- [3, 2, 1], find a b (five marks) a. [3, 4, 3] b. 0 c. 36 d. 10