Set notation and roster notation in math sets

label Mathematics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Use proper set notation to rewrite each set with roster notation (ex. {1,2,3,4}. Problem: The set of integers which when squared equal 7. I'm not sure how to write this because the square root of 7 is a decimal. 

Thanks in advance!

Sep 3rd, 2015

Thank you for the opportunity to help you with your question! Hope your day is going great!

Integers is a set of whole numbers from negative to positive.

As you have noticed, you reach a decimal answer. This means there is not an x that satisfies this equation.

So, in math, we call this the empty set. It looks like a 0 with a diagnal line going through it.

Like this

No braces are necessary (thus you just write the empty set, and no {})

Please let me know if you need any clarification. I'm always happy to answer your questions. Leave a positive review if you are happy!
Sep 3rd, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Sep 3rd, 2015
...
Sep 3rd, 2015
Jun 25th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer