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The set A= {x:x is an integer and -3lexl...

The set A= {x:x is an integer and `-3lexlt2}` is equal to :

A

`phi`

B

`{-3,-2,-1,0,1}`

C

`{-3,-2-1,0,1,2}`

D

None of these.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to express the set \( A = \{ x : x \text{ is an integer and } -3 \leq x < 2 \} \) in roster form. Let's go through the steps: ### Step 1: Identify the range of integers The condition given is that \( x \) is an integer between -3 and 2. The inequality states that \( x \) can take values starting from -3 (inclusive) up to 2 (exclusive). ### Step 2: List the integers starting from -3 Since -3 is included in the set, we start listing integers from -3: - The first integer is -3. ### Step 3: Continue listing integers up to but not including 2 Next, we continue to list the integers: - After -3, the next integer is -2. - Then -1. - Then 0. - Then 1. ### Step 4: Stop before reaching 2 Since the inequality does not include 2, we stop listing integers before we reach 2. Therefore, we do not include 2 in our set. ### Final Result Now, we can write the set \( A \) in roster form: \[ A = \{-3, -2, -1, 0, 1\} \]
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