IDNLearn.com: Where curiosity meets clarity and questions find their answers. Ask anything and receive prompt, well-informed answers from our community of knowledgeable experts.
Tell whether the set is closed under the operation indicated. If not closed, provide a counterexample.
1.) integers under addition 2.) integers under division
3.) whole numbers under subtraction 4.) Irrational numbers under addition
Thank you for contributing to our discussion. Don't forget to check back for new answers. Keep asking, answering, and sharing useful information. Your questions are important to us at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.