Chapter 2: Complex Numbers - Online Test
Q1. If α and β are the roots of x2
+ x +1 = 0 , then α 2020 + β 2020 is
Answer : Option B
Explaination / Solution:
Q2. The product of all four
values of 
is
is
Answer : Option C
Explaination / Solution:
Q3. If ω ≠ 1 is a cubic root of unity and 
= 3k
then k is equal to
= 3k
then k is equal to
Answer : Option D
Explaination / Solution:
Q4. The value of 
is
is
Answer : Option A
Explaination / Solution:
Q5. If ω = cis (2π/3),
then the number of distinct roots of 
Answer : Option A
Explaination / Solution:
