Problem 1.1: Express

using the imaginary unit ı. [Solution]

Problem 1.2: Is 3 a complex number? [Solution]

Problem 1.3: Rewrite the complex number

+3ı⁴ in standard form z = a + bı and find a and b. [Solution]

Problem 1.4: What is ı⁶¹⁸? [Solution]

Problem 1.5: When the complex number z = - 2 + 3ı is plotted in the complex plane, in which quadrant is it? [Solution]