[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [obm-l] EN-87/88
- To: obm-l@xxxxxxxxxxxxxx
- Subject: Re: [obm-l] EN-87/88
- From: "Marcelo Salhab Brogliato" <msbrogli@xxxxxxxxx>
- Date: Fri, 21 Sep 2007 22:03:58 -0300
- DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=Y9T9cuZNwovwUhjmiyI2IeOk6XKbWKZSZPMMxf5Ojz0=; b=OtIYkFYOTixIthtTCON6ZNbyQ4uWZ5pkBv+cAEfCRuED41kuZq8xK9UlLu5hbR88wWohAr9cWxODLsW/k76uIeozWIjQzAske0q5sz1UDk9FX3fA44TT8TyODKWjCpdzcerspKoC7n8OVJANQICiBIfZsP3qf3SyVcoCXpPB+Uw=
- DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=twGmuByjF45nhPHI1z5z3sKzwg31bJ8XjSw8UoVz6vTe2ixrIkaJusLZNKfnUfpXf6FR4k/7p+koJioaK/dUrc7ck9HdIw0+U4+MWgoUg2FTHbEiaM31pQOLa+y3TuMFFb1vQ0jVndPsEmo11CtfciXSiTidOc9CwODgM2eFCZA=
- In-Reply-To: <JOOERE$1CBFDE3A9F742B5FAB68709461833233@bol.com.br>
- References: <JOOERE$1CBFDE3A9F742B5FAB68709461833233@bol.com.br>
- Reply-To: obm-l@xxxxxxxxxxxxxx
- Sender: owner-obm-l@xxxxxxxxxxxxxx
Olá Arkon,
dê uma conferida no enunciado.. nao teria 1/x na expressao?
abraços,
Salhab
On 9/20/07, arkon <arkon@bol.com.br> wrote:
>
>
>
> Pessoal alguém pode, por favor, resolver esta:
>
>
>
> (EN-87/88) Para todo x real, -3 < x2 + ax – 2/x2 – x + 1 < 2 se é só se:
>
>
>
> a) – 3 < a < 2. b) – 1 < a < 2. c) – 6 < a < 7. d) – 1 < a < 7. e)
> – 6 < a < 2.
>
>
>
> DESDE JÁ MUITO OBRIGADO
=========================================================================
Instruções para entrar na lista, sair da lista e usar a lista em
http://www.mat.puc-rio.br/~nicolau/olimp/obm-l.html
=========================================================================