Question

Write the following sets in Roster form

M={x:x is a positive integer and x3<40}

and try to understand x3 means x cube​

Answer 1

Answer:

{1,2,3}

Step-by-step explanation:

x^3<40

So we can only include those x whose cube is less than 40.

So 1^3=1

2^3=8

3^3=27

4^3=64

So we can only include 1,2&3 in the set.