2. Find the line integral of F along the following curves from (0,0,0) to (1, 1, 1), where 2z 2y 1+x+y+z2 1+x+ y+22 1 F(x, y, z) + 1+x+ y+22 (a) The straight line C from (0,0,0) to (1, 1, 1); j+ (b) The line C2 which first, is the straight line C2 in the xy-plane from (0,0,0) to (1,1,0) and then the vertical line C from (1,1,0) to (1, 1, 1).