Question

2. (8)-3 expressed as power with base 2is

(a) 2

-9

(b) 2

-6

(c) 2

-3

(d) 2

9​

Answer 1

Answer:

Option (a) is the correct answer.

Step-by-step explanation:

(8) raised -3 can be written as,

Since 8 is the cube of 2 i.e. (2)³ = 8 we can also write,

(2)³ raised to -3

Using one of the indices,

a raised to m raised to n = a raised to (m x n)

Here, a = 2, m = 3, n = -3

∴ 2 raised to 3 raised to -3 = 2 raised to (3 x -3)

= 2 raised to -9