Question

Suppose 4 ?
Please help I dont understand how to solve it.

Answer 1

If a is an integer then there is no value of a as there is no integer present which is greater than 4 and less than 5.

So if a is real.

• b can be 3 only

So

set of values

• [1,2]

Answer 2

Let's find the smallest number in the range.

Subtract the largest b from the smallest a: 4 - 4 = 0

Then find the largest number in the range.

Subtract the smallest b from the largest a: 5 - 2 = 3

So...

0 < a - b < 3