Question: Find all numbers x for which the angle between c = 2xi + 2j + 4k and d = 2i + 2xj + 4k is

Find all numbers x for which the angle between c = 2xi + 2j + 4k and d = 2i + 2xj +

Find all numbers x for which the angle between c = 2xi + 2j + 4k and d = 2i + 2xj + 4k is ox= 1 4 + 207, 4 - 207 ) Or = 2+ V7 Or = 2- V7 Or = 2+17, 2 - V71 Or = 1+ V7 2 , 1 Question number 6. Calculate 2j x (6i - 4k) -8i + 12k O 8i + 12k O -8i - 12k O -121 - 8k O 12i + 8k

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