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Q4. Given F = [x2 +xy,x2 +y2] and C is the square formed by the lines...

Q4. Given F = [x2 +xy,x2 +y2] and C is the square formed by the lines y = ±1 and x = ±1
(a) Find the parametric representation of each side of the square;
∫
(b) Use question (a) to evaluate the line integral C F (r) · dr;
(c) Evaluate the line integral using Green’s theorem and compare it with the result of (b).

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