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(1 point) Find the following expressions if a = 3i - 4k and b = i + j 3k. - 1. |a| = 2.
(1 point) Find the following expressions if a = 3i - 4k and b = i + j 3k. - 1. |a| = 2. a + b = 3. a b = - 4. 3a + 4b =
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