Hey guys, this is my first post, (Hi) was just wondering if i could get your help. I'm studying for my repeats and you guys can save me.(adsbygoogle = window.adsbygoogle || []).push({});

If X = {1,2,3,4}, Y = {2,4,6} what is the cardinality of the following sets?

(i) A = {x|x mod 2 = 0 and 0 <=x<=20}

(ii) B = X * X * Y

(iii) C = {(x,y)|x ≠ y and x,y ∈ X}

Please explain your train of thought in solving this. I am trying hard to understand the right way to approach this question quickly, Thank you for your time guys...

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Sets and their Cardinality?

Loading...

Similar Threads - Sets Cardinality | Date |
---|---|

I Cardinality of the Power Series of an Infinite Set | Jul 9, 2017 |

Cardinality of the set of binary-expressed real numbers | Dec 3, 2015 |

Proof of |2^N x 2^N| = |2^N| with N the natural numbers | Nov 10, 2015 |

Application of sets with higher cardinality | May 7, 2015 |

Set whose cardinality is [itex]\aleph_2[/itex]? | Jun 1, 2014 |

**Physics Forums - The Fusion of Science and Community**