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Class 11 Mathematics Chapter 5 Complex Numbers And Quadratic Equations Quiz 2 (25 MCQs)

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1. (5-2i) + (-7+8i)
2. Consider the equation:$x^2-2x+5=0$
3. The modulus of the complex number $z=-\sqrt{3}+i$
4. $\frac{-4+7i}{2i}$
5. What is the difference of (5 + 3i) and (2 + 9i)?
6. $3\left(x+4\right)^2=81$
7. Simplify (11 + 5i)(11-5i)
8. (10+3i)-(2-9i)
9. Express the complex number in polar form.-2 + 5i
10. What is the discriminant of the quadratic formula?
11. (-7+6i)$^{2}$
12. (9+4i)/(-1-2i)
13. What is the result of (3 + 4i)-(1 + 2i)?
14. Solve the quadratic equation:$x^2-5=-4$
15. Simplify $(4-3i)+(2-8i)$
16. Multiply:(4 + 8i)(1 + i)
17. (2i)(3i) =
18. $4i^3\left(3-2i^6\right)$
19. Write in standard form:$\left(2x-3\right)^2+5$
20. What is the multiplicative identity of a complex number?
21. What is the result of dividing (3 + 2i) by (1-i)?
22. Solve:(x + 6)$^{2}$ = 1
23. What is the sum of the expression (8 + 4i) + (6-3i)?
24. What is the sum of the expression (8 + 6i) + (4 + 2i)?
25. Number of solutions of the equation z$^{2}$ + |z|$^{2}$ = 0 is
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