INTRODUCTORY EXERCISES - Complex Numbers
1. Express the following ni the form a + ib
a) (i - 1)3
b) (1 + i)-2
(SOLUTION)
2. Verify the identity:
Let z = x + iy.
Re(iz) = -Im(z)
(SOLUTION)
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3. Show zz is always a real number.
(SOLUTION)
