MCQs Number System 3

1. $(0, 1)^3$ is equal to

2. The additive identity in set of complex number is

3. If $a+ib$ is complex number then its conjugate is

4. The multiplicative inverse of $(-4, 7)$ is

5. (0, 1) is equal to

6. $(0, 1)^4$ is equal to

7. The product of two conjugate complex numbers is

8. The real part of $\frac{2+i}{i}$ is equal to

9. The multiplicative inverse of $(a, -b)$ is

10. The additive inverse of $(a, -b)$ is

11. $(-1)^{-\frac{21}{2}}$ is equal to

12. $(-i)^{19}$ is equal to

13. If $a+ib$ is a complex number then its conjugate is

14. $(0, 1)^2$ is equal to

15. If $z$ is any real number then its conjugate is

16. The multiplicative identity of a complex number is

17. The factors of $3(x^2+y^2)$ are

18. The sum of two conjugate complex numbers is

19. If $k$ is any real number and $a+ib$ is a complex number then

20. (0, 3) (0, 5) is equal to