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

Where LOA - arc x = Rcost, y = Rsint; O (R, 0); A (0, R)

Where LOABC - rectangular contour with vertices O (0, 0), A (4, 0), B (4, 2), C (0, 2).

Where L - first coil helix x = acost, y = asint, z = bt.

Where LOB - arc of a parabola y = 2√x from point O (0, 0) to point B (1, 2)

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