Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: efji <efji@efi.efji>
Newsgroups: fr.sci.maths
Subject: Re: Racines multiples
Date: Thu, 22 May 2025 18:51:46 +0200
Organization: A noiseless patient Spider
Lines: 9
Message-ID: <100nkn2$3ifbe$1@dont-email.me>
References: <o6KyIry4wY-h7Jbpf_Zi0vOMeD4@jntp>
 <4H07lJCIpz7FJwCO01QTjJRcyME@jntp> <iMUqosQkiKrCqmL74lI8zuMwy-Q@jntp>
 <EDTfB79tJXOsCTXpIBVwqHA4jBg@jntp> <NjfD3NjBn4yE7SFASmrcjSkUcnk@jntp>
 <F0cLGfoRzd2nMNFUUKTvC2KupFU@jntp> <9ziJaXVAOjakZ6DDjNp-DpT5EI8@jntp>
 <syJ6EPvGfKblf5DZ2bFBPkk73qU@jntp> <PTxrHyL8RYe1N8TUICRil_O3Tdg@jntp>
 <A16j8bDjGypD3MU6dUSWeO5fTSE@jntp> <MkfmCXo1x_naVQ15EEK97U7mHHk@jntp>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Thu, 22 May 2025 18:51:47 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="849f65013e3e44d3e6bac8850540b5cb";
	logging-data="3751278"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX198iZjvHrC1a2YPt4i2rkyh"
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:axMtE3UAqsDnXqiKl/zQk0NlCvE=
In-Reply-To: <MkfmCXo1x_naVQ15EEK97U7mHHk@jntp>
Content-Language: fr, en-US
Bytes: 1565

Le 22/05/2025 à 12:53, Julien Arlandis a écrit :
> cos(x + 2kπ) = cos(x) + 0 cos(2kπ) avec k \in Z
> et 0 cos(2kπ) ≠ 0 dans P.

Houla non!
cos(x + 2kπ) = cos(x)cos(2kπ)) - sin(x)sin(2kπ) = cos(x)

-- 
F.J.