(adsbygoogle = window.adsbygoogle || []).push({}); The coolest fact in trigonometry that you learn way too late....

So I just spent the last 12 hours learning trig (occasional food breaks).

I just want to share with you something really, really, really, really, awesome.

Check this out, you're gonna be blown away

The law of cosines, applied to a right triangle is c^2 = a^2+b^2 - 2abCosA Whereas A is equal to zero!!!

So the law of cosines for a right triangle is, in fact, the Pythagorean theorm!!! Math is sooooooooo awesome. Why did it only take me the last quarter of the textbook to learn this fact???

**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!

# The coolest fact in trigonometry that you learn way too late

Loading...

Similar Threads - coolest fact trigonometry | Date |
---|---|

B Trigonometry Identity Question | Oct 8, 2017 |

I Using trigonometry to create a radar for a game. | Jun 4, 2017 |

B What are some strategies to prove trigonometric results | May 11, 2017 |

Question about limit fact | Jul 9, 2014 |

Any Facts about Newton Polygons | May 30, 2005 |

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