Hi this is my first post so here goes.....(adsbygoogle = window.adsbygoogle || []).push({});

Basically I'm studying maths and in a section called proof and resoning they have introduced mathematical induction. I have tried to follow the examples but I still can't make head nor tail of it really. It makes absolutely no sense to me at all?

The question asked is

Prove SUM(r=1 to n) 1/r(r + 1)(r + 2) is 1/4 - 1/2(n + 1)(n + 2)

Ok where/how do I start? This bears absolutely no resemblance to any of the worked examples at all, the examples are summing squares and cubes but this is a fraction?

Can you see my problem? If I'm absolutely honest I have been on with it for a few days now (yes I said days!) and am about to forget the whole induction thing completely...

Please if anyone can help me have a light bulb moment I will be very grateful!!!

Many thanks

James

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

Join Physics Forums Today!

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

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

# Mathematical Induction

Loading...

Similar Threads - Mathematical Induction | Date |
---|---|

Hard mathematical induction question | Nov 19, 2011 |

Mathematical induction | Mar 9, 2010 |

Mathematical induction | Jul 3, 2008 |

Mathematical Induction | Jun 17, 2008 |

Library item: Mathematical Induction reported | May 16, 2008 |

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