1. Calculate the data line integrals (1-4)

Where LAB - arc of a parabola y = x2 from point A (1, 1) to point B (1, 1).

Where L - the arc of the curve x = tcost, y = tsint, z = t, 0 ≤ t ≤ 2π

Where L - the circle x2 + y2 + z2 = a2, x = y

Where LOA - arc of a parabola y = 2x2 from point O (0, 0) to the point A (1, 2)

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