1. Let u = , v = , and w = be vectors. Find the indicated expression. U . V 2. Let A = (2, -1), B = (3, 1), C= (-4, 2), and D = (1, -5). Find the component form and magnitude of the vector. AC+ BD 3. Find a unit vector in the direction of AB A = (4, 0), B = (2, 1)