For this function : Exp[-Cos[x]]*Cos[x/3]], integrated from 0 to 3*Pi. The numerical result suggests that this integral may gives 0. However, I couldn't find a way to analytically show it's 0. Could anyone tell me how to prove this ?(adsbygoogle = window.adsbygoogle || []).push({});

**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!

# How to prove this integral is 0 ?

Tags:

Loading...

Similar Threads - prove integral | Date |
---|---|

Proving the fundamental theorem of calculus using limits | Feb 24, 2015 |

Integral -- analytical way to prove this integral is non-negative? | Aug 1, 2014 |

Prove two integral identities? | Apr 23, 2013 |

How to prove an inequality for a definite exponential integral | May 31, 2012 |

Prove of the complicated integral | Jan 16, 2012 |

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