Question Detail

MTH 101 MTH 101 Past Questions Objective Question

Question

Given that z₁ = i and z₂ = 1-i. Find z₁/z₂

Options
A (i-1)/2
Correct Answer
B (i+1)/2
C (1+i)/2
D 16-1
Correct Answer

Option A is the correct answer.

Detailed Explanation

z₁/z₂ = i/(1-i). Multiply numerator and denominator by the conjugate (1+i): i(1+i)/((1-i)(1+i)) = i + i²/(1² - i²) = i - 1/(1+1) = (i-1)/2 = (i-1)/2.

Hint

Multiply numerator and denominator by the conjugate of the denominator.

Question Info