Find unit vectors that satisfy the stated conditions. NOTE: Enter the exact answers in terms of i,j and k. (a) Same direction as – 2i+ 7j. u = (b) Oppositely directed to 12i – 8j + 8k. V (c) Same direction as the vector from the point A(-2,0, 2) to the point В(2, 1, 1). W =

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