Please explain/show work in detail. I am not sure on how to give more points/lik

Question

Please explain/show work in detail. I am not sure on how to give more points/likes but if you tell me how to in the comments, I will defintely do so. Thank you in advance!!

(4) Evaluate the vector operations described in each part of these two vectors. (-2k - 3i) vector operations described in each part of these two vectors (-2.3) and (-2,-4i + 9k) (a) Sum (b) Difference (c) Dot product (d) 2 cross products. Each one takes a turn being first. Do each cross product explicitly (e) Take the result from (c) and multiply it by the result from (b) in all possible combi- nations that give unique answers

Explanation / Answer

4) A = -3i -2k , B = -4i -2j +9k

(a) Sum A+B = -3i -2k -4i -2j +9k

Sum = -7i -2j+7k

(b) Difference A-B = -3i -2k - (-4i -2j +9k)

A- B = i +2j -11k

(c) Dot product A.B = (-3i -2k) .( -4i-2j +9k)

A.B = 12 -18 = -6

(d) AxB = (-3i -2k) x( -4i -2j +9k)

AxB = -4i +35j +6k

(e) (A.B)(A-B)= -6 (i +2j -11k)

= -6i -12j +66k

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