Question Detail
Question
Given that z₁ = 1 - i and z₂ = 1 + i, find the product of z₁ and z₂.
Correct Answer
Option C is the correct answer.
Detailed Explanation
z₁ × z₂ = (1 - i)(1 + i) = 1² - i² = 1 - (-1) = 1 + 1 = 2.
Hint
Use the difference of squares formula (a-b)(a+b) = a² - b².