Hi there, I am struggling to answer part d), I was wondering if you could help. I attached a picture of my answers to parts a), b) and c). Thank you!
Extracted text: 3D19(4,-2,4) ー4(4,-2,4)+15(4ュ-2,4) (76,-38, 76) ニ (^x^)Oエ-(Mx ^) S- 11 = -8-2-12 (x xV).u%3D-22 -ユ7,1スッ20) =子(-3,2,2)+ス(2,-1,3) (xxV)-u=x·(-4,2,-4) ニ子ィー(-スx) =(2,-1,3).(4,2スュー分) (カーとカフ=m×> (-21,14,14) +(4,-2. ニ >ワー: (M x ^).X= · (^x x) (9 (X४-) - x (M .h)-h(m-x)= mxchxx) (0
Extracted text: 3 Let x, y, u and v be row vectors in R obeying: X = x = (2, –1, 3), y = (-3, 2, 2), and suppose that X•w = 7, y w = -2, and ux v = (4, -2, 4). Use this information to answer the following questions: a) Calculate (x X y) X w. b) Find (x X v) ·u. c) Calculate (2u - 5v) x (3u + 2v). d) Suppose that the area of the parallelogram with one vertex at the origin determined by the vectorsu + kv and ku + v is 48 for some k E R. What are the possible values of k?