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Question: question 1 find the work done by a force yy...

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Question 1 Find the work done by a force .).-)-(.y.y) along the C:o(3t.a) from point 46DD) to h., curve :)-3cost,3 sintt (10 marks) Question2 Use Greens theorem in a plane to evaluate the integral f (r,-уh» (r2 + y2)ly where C is the boundary in the xy- plane of the area enclosed by the x-axis and the semi-circle x, y2-1 in the upper halfxy-plane. (10 marks)
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