NDA || Mathematics || Algebra || Complex Number || Quiz 2020

Attempt now to get your rank among 249 students!

Question 1

Z= (1-i)/(1+i) can also be expressed as

• A1
• B-1
• Ci
• D–i

Question 2

The common roots of the equations
z³ + 2z² + 2z + 1 = 0 and z²⁰¹⁷ + z²⁰¹⁸ + 1 = 0 are

• A-1, ω
• B1, ω²
• C-1, ω²
• Dω, ω²

Question 3

The number of non-zero integral solutions of the equation |1 – 2i|^x = 5^x is

• AZero (No solution)
• BOne
• CTwo
• DThree

Question 4

Let z be a complex number such that |z| = 4 and  What is z equal to?

Where I =

• A
• B
• C
• D

Question 5

The modulus-amplitude form of  where  is

• A
• B
• C
• D

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