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

Where LAB - section of the line AB; A (1, 1, 1); B (2, 3, 4)

Where L - the first round of the helix x = 2cost, y = 2sint, z = 2t.

Where L - scan circle x = a (cost + tsint), y = a (sint - tcost), 0 ≤ t ≤ 2π.

Where L - the upper half circle arc x2 + y2 = R2, «traversed" in the positive direction bypass circuit.

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