Complex Numbers MCQ Test: Complex Numbers MCQs - Practice Questions
1. If z = 3 + 4i, what is the imaginary part of z?
2. Calculate the product of the complex numbers (4 + 2i) and (1 - i).
3. Find the roots of the equation 'z^4 + 1 = 0' for complex 'z'.
4. Find the cube of the complex number '3 + 4i'.
5. What is the argument of the complex number '4 - 4i'?
6. Express the complex number '2 + 2i' in polar form.
7. Determine the argument of the complex number '2 + i'.
8. If z = -5 - 12i, what is the imaginary part of z?
9. What is the polar form of the complex number '4 - 3i'?
10. What is the argument of the complex number '12(cos 120° + i sin 120°)'?
11. Evaluate 'cosh(iπ/2)'.
12. Find the square root of the complex number '16(cos 45° + i sin 45°)'
13. What is the argument of the complex number '6(cos 45° + i sin 45°)'?
14. What is the real part of the complex number '7 + 2i'?
15. If z = 5 - 2i, what is the imaginary part of z?
16. What is the product of the complex numbers (3 + 2i) and (1 - 4i)?
17. Calculate the value of 'tan(iπ/2)'.
18. Simplify the expression 'i^3'.
19. What is the magnitude of the complex number '6 + 8i'?
20. What is the square root of -1, often denoted as 'i'?