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 + 5j. u = (b) Oppositely directed to 10i – 5j+ 20k. - V (c) Same direction as the vector from the point A(-1,0, 2) to the point В(2, 1, 1). w =

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