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3 February, 00:16

Find a + b, 2a + 3b, |a|, and |a - b|. a = i + 4j - 2k, b = - 4i - j + 6k

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  1. 3 February, 00:43
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    A + b = i + 4j - 2k + (-4i - j + 6k)

    = i + 4j - 2k - 4i - j + 6k

    = - 3i + 3j + 4k
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