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Question 1 of 30

Math

1. The conjugate of 5 + 4i is:

–5 + 4i

–5 – 4i

5 + 4i

5 – 4i

Question 1 of 30

Question 2 of 30

2. If x = log y, then y is called ……………….. of x .

antilog

mantissa

base

common

Question 2 of 30

Question 3 of 30

3. π (pi) is a/an:

Real number

Rational number

Irrational number

Integers

Question 3 of 30

Question 4 of 30

4. The integral part of the common logarithm of a number is called:

None of these

Mantissa

Characteristic

Antilog

Question 4 of 30

Question 5 of 30

5. Exponential form of ⁷√x is:

x⁹

x⅟ ⁷

x⁷

Question 5 of 30

Question 6 of 30

6. The relation y = log_z x implies:

zy = x

xz = y

yz = x

xy = z

Question 6 of 30

Question 7 of 30

7. log e = …………………

0.4343

∞

Question 7 of 30

Question 8 of 30

8. Logarithmic form of aˣ = n is:

x = loga n

a =logx n

a = logn x

x = logn a

Question 8 of 30

Question 9 of 30

9. Scientific notation of 416.9 is:

41.69 x 10¹

0.4169 x 10³

4.169 x 10²

4169 x 10⁻¹

Question 9 of 30

Question 10 of 30

10. The numbers containing zero with natural numbers are called:

Rational numbers

Real numbers

Irrational numbers

Whole numbers

Question 10 of 30

Question 11 of 30

11. Base of common logarithm is:

Question 11 of 30

Question 12 of 30

12. (27 x⁻¹)⁻⅔ =

Question 12 of 30

Question 13 of 30

13. Those numbers which cannot be expressed as quotient of integers are called:

Irrational numbers

Integers

Real numbers

Rational numbers

Question 13 of 30

Question 14 of 30

14. The logarithm of any number to itself as base is:

– 1

Question 14 of 30

Question 15 of 30

15. Real part of 2ab (i + i²) is:

2abi

– 2abi

2ab

Question 15 of 30

Question 16 of 30

16. Imaginary part of –i(3i + 2) is:

–2

–3

Question 16 of 30

Question 17 of 30

17. The decimal part of the common logarithm of a number is called:

Mantissa

Base

Antilog

Characteristic

Question 17 of 30

Question 18 of 30

18. i⁹ = ………………….

– 1

– i

Question 18 of 30

Question 19 of 30

19. A non-terminating, nonrecurring decimal represents:

Rational number

Prime number

Natural number

Irrational number

Question 19 of 30

Question 20 of 30

20. Who gave the idea of logarithms?

Khwarizmi

Henry Briggs

Jobst Burgi

John Napier

Question 20 of 30

Question 21 of 30

21.

4/5

-5/4

-4/5

5/4

Question 21 of 30

Question 22 of 30

22. The logarithm of unity to any base is:

– 1

Question 22 of 30

Question 23 of 30

23. log p – log q is same as:

Log (p – q)

Log (p/q)

Log p/log q

Log(q/p)

Question 23 of 30

Question 24 of 30

24. log mⁿ = ………………..

mlogx

log(mn)

n logx

(log m)ⁿ

Question 24 of 30

Question 25 of 30

25. logb a x logc b can be written as:

logab

logac

logca

logbc

Question 25 of 30

Question 26 of 30

26. Value of e is:

4.718

3.1428

2.718

3.718

Question 26 of 30

Question 27 of 30

27. Who prepared the logarithm table?

Jobst Burgi

Khwarizmi

Henry Briggs

John Napier

Question 27 of 30

Question 28 of 30

28. Name the property of real numbers used in

Multiplicative identity

Additive identity

Multiplicative inverse

Additive inverse

Question 28 of 30

Question 29 of 30

29. If x, y, z є R, z < 0, then x < y ⇒ …..

None of these

xz > yz

xi < yi

xy = yz

Question 29 of 30

Question 30 of 30

30. If a, b є R, then only one of a = b or a < b or a > b holds is called:

Multiplicative property

Additive property

Tracheotomy property

Transitive property

Question 30 of 30

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Test By Topics	9th Class Math

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