# MCQs Number System 3

The Quiz is about Number System from Mathematics of Intermediate Part-I (First Year).

MCQs about the number system for the preparation of mathematics. MCQs about mathematics for intermediate students with questions and answers.

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

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

3. (0, 1) is equal to

4. The additive identity in set of complex number is

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

6. The multiplicative identity of a complex number is

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

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

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

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

11. $(0, 1)^4$ is equal to

12. $(0, 1)^2$ is equal to

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

14. $(0, 1)^3$ is equal to

15. (0, 3) (0, 5) is equal to

16. The product of two conjugate complex numbers is

17. The sum of two conjugate complex numbers is

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

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

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

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