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Find the line integral of f(x, y,z) = x + y + z over the straight-line segment from (4, 1,2) to (3, -2, -2). (x + y+ z) ds = (Type an exact answer, using radicals as needed.)Evaluate (4x + 2 vy ) ds where C is given C (1,1 ) 1- in the accompanying figure. VEX Y=X' (0,0) (4x+ 2vy) ds = C (Type an exact answer, using radicals as needed.)Find the k-component of (curl F) for the following vector field on the plane. F = (8x + 4y)i + (9xy)i (curl F) . k =