- #1

fonseh

- 529

- 2

## Homework Statement

In the first photo , interval [-2 ,2 ] means a = -2 , b = 2 , am i right ?

So , how to show that b-a = 1 ?

## Homework Equations

## The Attempt at a Solution

IMO , b-a = 2+ 2 = 4

for part b , why b - a = -1-(-2) ?

Is there anything wrong with this question ?