Question

10. Find the unit digit of the cube of each of the following numbers.
a) (-135) b) 24 c) 39 d) 238​

Answer 1

Given:

a) (-135) b) 24 c) 39 d) 238​

To find:

Find the unit digit of the cube of each of the above numbers.

Solution:

From given, we have,

a) (-135) b) 24 c) 39 d) 238​

The cube of these numbers are as follows:

a) (-135) = (-135)³ = (-1)³ × 135³ = -2460375

The unit digit of the cube of (-135) is 5

b) 24 = 24³ = 13824

The unit digit of the cube of 24 is 4

c) 39 = 39³ = 59319

The unit digit of the cube of 39 is 9

d) 238​ = 238³ = 13481272

The unit digit of the cube of 238 is 2

Thus the  unit digit of the cube of each of the following numbers are: a) (-135) = 5 b) 24 = 4 c) 39 = 9 d) 238​ = 2

Answer 2

Answer:

24

24³ = 13824

39

39³ = 59319

I hope this answer will help you