.Question 4 Given u X 1 = (4, 3, -2), find (u - 80) x (7 + 48). Question Help: Video Message instructor D Post to forum Submit Question MacB esc C G Search or typ # EA % N 9 W 4 5.Question 5 Simplify (i xi - 8ix j - 41 x k + 3j x k) xi. (Write i, j, or k for i, j or k) Question Help: Message instructor D Post to forum Submit Question MacBo esc C G Search or type % W : 2Question 6 Vectors v and w have magnitudes | |3| | =16 and | |w| | =11 and the angle between these vectors is 159 What is the magnitude of their cross product? (Give an answer accurate to two decimal places. ) = 1/m x 2/1 Question Help: Message instructor Post to forum Submit Question MacBook Pro esc C G Search or type URL # $ % & N 3 4 5 6 7 Q tab W E R Y A S D C