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Test: Laws of Exponents


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20 Questions MCQ Test Mathematics (Maths) Class 9 | Test: Laws of Exponents

Test: Laws of Exponents for Class 9 2022 is part of Mathematics (Maths) Class 9 preparation. The Test: Laws of Exponents questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Laws of Exponents MCQs are made for Class 9 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Laws of Exponents below.
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Test: Laws of Exponents - Question 1

Which of the following is the value of (4/5)-9 / (4/5)-9?

Test: Laws of Exponents - Question 2

(64)-3/2

Detailed Solution for Test: Laws of Exponents - Question 2

(64)-3/2 = ( 8 )2 x - 3/2 =  (8)-3  

= 1 / (8)3 = 1/ 512 

So option B is correct answer . 

Test: Laws of Exponents - Question 3

3x-3  *  5x-4 = 45
What is the value of x?

Detailed Solution for Test: Laws of Exponents - Question 3

Given,

[3(x-3)] 5(x-4) = 45 = 32 (51)

On comparing both sides we get,

x-3 = 2 and x-4 = 1

=> x = 5

Hence, option A is the correct answer.

Test: Laws of Exponents - Question 4

Find the value of 

Test: Laws of Exponents - Question 5

Which of the following = (100 - 990) x 100?

Test: Laws of Exponents - Question 6

Simplified value ofis:

Test: Laws of Exponents - Question 7

163/2 is equal to———-

Detailed Solution for Test: Laws of Exponents - Question 7

(4²)3/2 = (4)3/2 ×2 = (4)³ = 64

Test: Laws of Exponents - Question 8

Simplify: 

Test: Laws of Exponents - Question 9

Test: Laws of Exponents - Question 10

What isequal to?

Test: Laws of Exponents - Question 11

Which of the following is equal to 

Test: Laws of Exponents - Question 12

How many zeros after the decimal point will be there in the decimal form of the number 10-n ?

Test: Laws of Exponents - Question 13

Simplified value of  is:

Detailed Solution for Test: Laws of Exponents - Question 13

(16)^-1/4 × 4√16 =(16)^-1/4 × (16)^1/4 =(16)^-1/4+1/4 =(16)^0 = 1.

Test: Laws of Exponents - Question 14

Which of the following statement is true

Test: Laws of Exponents - Question 15

The value of  is:

Detailed Solution for Test: Laws of Exponents - Question 15

It's 1 because of a0= 1.
So 1×1/1 = 1

Test: Laws of Exponents - Question 16

(256)3/4 = ?

Detailed Solution for Test: Laws of Exponents - Question 16

Test: Laws of Exponents - Question 17

What is the value of (-1)-1?

Detailed Solution for Test: Laws of Exponents - Question 17

(-1)-1 =  - 1 / 1 = -1

Test: Laws of Exponents - Question 18

811/2 is equal to ——

Detailed Solution for Test: Laws of Exponents - Question 18

811/2  can be written as (9) 2x1/2 =  9 

Test: Laws of Exponents - Question 19

The value of 491/2 is equal to———

Detailed Solution for Test: Laws of Exponents - Question 19

491/2 can be written as  (7)2x1/2 = 7

Test: Laws of Exponents - Question 20

=

Detailed Solution for Test: Laws of Exponents - Question 20

 ( 5 ) 3 x -1/3   x  ( 5 ) 2  x -1/2 

  ( 5 ) -1  x   ( 5 )  -1

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