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Mathematics, 20.11.2020 18:50 ellie55991

Let a = 8i + 2j, b = –3i + j, and c = 2i – 5j, where i and j are unit vectors. What is 4a + 2b – 9c in terms of i and j?

8i – 35j
8i – 2j
8i + 53j
8i + 55j

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Let a = 8i + 2j, b = –3i + j, and c = 2i – 5j, where i and j are unit vectors. What is 4a + 2b – 9c...
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