Let C₁ be a straight line in the Argand plane from (0, 0) to (3, 3), and let C₂ be the path consisting of a straight line from (0, 0) to (3, 0) followed by a straight line from (3, 0) to (3, 3). Calculate the following integrals directly: i. [zºdz ii. [ z dz C₂

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