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W 13. Choose the best answer. Given; u = -2i + 9j, v = i+8j Find the answer: 3u - v O 19j O -7i+j

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W 13. Choose the best answer. Given; u = -2i + 9j, v = i+8j Find the answer: 3u - v O 19j O -7i+j O -71+ 19j O -171 + 20j O -i+ 19j 14. Choose the best answer. Find the angle between the vectors to the nearest whole number. Use a calculator. v = (3, 4), w = (3, -4) ON 106' O ~ 180 ON1 O ~ 35 O ~ 45 00:52:16

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