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. - (b) Oppositely directed to 6i – 3j+ 12k. v = (c) Same direction as the vector from the point A(-2,0, 4) to the point В(3, 3, 3). W =

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