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

Where LOB - arc of a parabola y = x2 from point O (0, 0) to point B (1, 1).

Where L - the arc of the lemniscate Bernoulli ρ2 = cos2φ, -π / 4 ≤ φ ≤ π / 4

Where L - first coil helix x = 5cost, y = 5sint, z = t.

Where LOB - a line segment connecting the points O (0, 0) and B (3, 6).

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