# Lab2-1 - Lab for Section 2.1 Name Use good notation and...

This preview shows pages 1–2. Sign up to view the full content.

Lab for Section 2.1 Name___________________________ Use good notation and show appropriate work. Write explanations in complete sentences . 1. State why the description of the set is not well-defined, then rewrite the description to state a well-defined set. The set of rich people who own a house in the city of Moorhead. 2. Identify whether each set is infinite or finite. (a) { x : x is an atom of gold on the planet earth.} (b) The set of rational numbers between 3 and 2. 3. Let A = { x : x is a name for a mammal.} and B = {2, 5, m , p , {2}, {2, m }}. Replace each blank with either or . (a) humpback whale _____ A (b) great white shark _____ A (c) {5} _____ B (d) m _____ B 4. Write each set using roster notation. (a) The set of natural number multiples of five between 2 and 38. (b) { x | 2 9 x } (c) The set of integers which when squared equal 7. 5. Write each set using set builder notation. (a) {1, 4, 9, 16, 25, 36, 49} (b) The set of natural number multiples of three. (c) {a, e, i, o, u} 6. Determine the cardinal number, n ( A ), for each of the following sets.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern