Chapter 2: Powers Exercise – 2.1

Question: 1

Express each of the following as a rational number of the form p/q, where p and q are integers and q ≠ 0:

(i) 2⁻³ 

 (ii) (−4)^-2

(iii) (1/3⁻²)

(iv) (1/2)^-5

(v) (2/3)^-2

Solution:

 

Question: 2

Find the values of the following:

Solution:

 

Question: 3

Find the value of each of the following:

Solution:

 

Question: 4

Simplify:

Solution:

 

Question: 5

Simplify:

Solution:

 

Question: 6

By what number should 5^-1 be multiplies so that the product may be equal to -7^-1?

Solution:

 

Question: 8

By what number should (-15)^-1 be multiplies so that the product may be equal to (-5)^-1.

Solution: