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Find unit vectors that satisfy the stated conditions. NOTE: Enter the exact answers in terms of i, j and k. (a) Same direction as -

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Find unit vectors that satisfy the stated conditions. NOTE: Enter the exact answers in terms of i, j and k. (a) Same direction as - 3i + 8j. (b) Oppositely directed to 4i - 2j + 8k. (c) Same direction as the vector from the point A(-1, 0, 2) to the point B(3, 1, 1). W =

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