Chapter 2: Complex Numbers - Online Test
Q1. in + in+1 + in+2 + in+3 is
Answer : Option A
Explaination / Solution:
Q2. The value of ∑(in + in−1 ) is
Answer : Option A
Explaination / Solution:
Q3. The area of the triangle
formed by the complex numbers z, iz, and z + iz in the Argand’s diagram is
Answer : Option A
Explaination / Solution:
Q4. The conjugate of a complex
number is 1/i-2 Then, the complex number is
Answer : Option B
Explaination / Solution:
Q5. If z= 
, then | z | is equal to
, then | z | is equal to
Answer : Option C
Explaination / Solution:
Q6. If z is a non zero
complex number, such that 2iz2 = 
then | z | is
then | z | is
Answer : Option A
Explaination / Solution:
Q7. If | z − 2 + i | ≤ 2 , then the greatest
value of | z | is
Answer : Option D
Explaination / Solution:
Q8. If 
, then the least
value of | z | is
, then the least
value of | z | is
Answer : Option A
Explaination / Solution:
Q9. If | z | = 1, then the value of 
is
is
Answer : Option A
Explaination / Solution:
Q10. The solution of the
equation | z | − z = 1+ 2i is
Answer : Option A
Explaination / Solution:
