1. Find (2xi+3yj) . dr, where C is the line from (1,0,0) to (5, 0, 0). 2. Find (xityj) . dr, where C is the top half of the circle of radius 1 centered at (2,0) and oriented counterclockwise. 3. Find F . di, where F = yi - x] and C is the right-hand side of the unit circle c starting at (0, 1). 4. Find F . dr, where F = -ysin rit cos r j and C is the parabola y = 12 between (0,0) and (2, 4). 5. Find F . di, where F = Ingit Incj and C is the curve given parametrically Jc by (2t, 13) for 2