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15 October, 08:37

Let u =, v =. Find - 8u - 2v.

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  1. 15 October, 08:59
    0
    Hello,

    i and j are unit's vectors.

    u=-5i-9j

    v=6i+8j

    -8u-2v=40i+72j-12i-16j=28i+56j

    -8u-2v=
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