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21 March, 10:05

Given that r = (7,3,9) and v = (3,7,-9), evaluate r + v. A. (-21,-21,81) B. (10,10,0) C. (21,21,-81) D. (-10,-10,0)

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  1. 21 March, 10:34
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    B. (10, 10, 0)

    Step-by-step explanation:

    Each component of the sum is the sum of corresponding components:

    r + v = (7, 3, 9) + (3, 7, - 9) = (7+3, 3+7, 9-9) = (10, 10, 0)
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