Question: 3. Write the following complex numbers in both the 'Cartesian' form u + iv and 'polar' form pe', where u, v, p, are real. In

3. Write the following complex numbers in both the 'Cartesian' form u + iv and 'polar' form pe', where u, v, p, are real. In parts (a) and (b), u, v, p, will be specific numbers, while in parts () and (d) they are functions of r and y. (2) (1 1-@)27 7T b) tanh (b) tan i Hint: For complex numbers, we define tanh(z) = (e* e~*)/(e* + 7). 1 (c) 112 where z = = + iy. (d) sin(z)

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