Question: Let a = -3i + 2k - 2l, b = -i + 2j - 4k, and c = 7i + 3j - 4k. Find each

Let a = -3i + 2k - 2l, b = -i + 2j - 4k, and c = 7i + 3j - 4k. Find each of the following:
a. a × b
b. a × (b + c)
c. a ∙ (b + c)
d. a × (b × c)

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