# Math Solved MCQS for PAF Education Instructor Math Test

Math Solved MCQS for PAF Education Instructor Test Preparation

1. √𝟑 is __________
Irrational

2. Product √−𝟐 × √−𝟐 is equal to _____
2

3. The property 𝟕. 𝟖 + (−𝟕. 𝟖) = 𝟎 is______
‘ + ’ inverse

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4. A recurring decimal represents_____
Rational number

5. If 𝑨 ⊆ 𝑩 then 𝒏(𝑨 ∩ 𝑩) =
𝑛(𝐴)

6. Inverse of any element of a group is:
unique

7. Every function is:
Relation

8. A compound proposition which is always neither true nor false is called:
contingency

9. A compound proposition which is always wrong is called:

10. If a matrix A has only one row then it is called:
Row vector

11. If a matrix A has only one column then it is called:
Column vector

12. If a matrix A has same number of rows and columns then A is called:
square matrix

13. The complex cube roots of unity are………………. each other.
Conjugate

14. The complex fourth roots of unity are ……. of each other.

15. Synthetic division is a process of:
division

16. Degree of quadratic equation is:
2
17. A coin is tossed 5 times , then 𝒏(𝑺) is equal to:
32

18. The number of ways for sitting 4 persons in a train on a straight sofa is:
24

19. A “Triangle” has :
6 elments

20. When we look an object above the horizontal ray, the angle formed is called angle of:
Elevation

21. When we look an object below the horizontal ray, the angle formed is called angle of:
depression

22. A triangle which is not right is called:
Oblique triangle

23. All trigonometric functions are ……………….. functions.
Periodic

24. General solution of every trigonometric equation consists of :
infinitely many solutions

25. 17. If 𝒕𝒂𝒏𝒙 = 𝟎 then 𝒙 =
𝑛𝜋 , 𝑛 ∈ 𝑍

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