Mathematics, 02.09.2020 01:01 Cobetate

Finda + b, 2a + 3b, |a|, and |a − b|.a = 5i + j, b = i − 2j

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Finda + b, 2a + 3b, |a|, and |a − b|.a = 5i + j, b = i − 2j...