RE: [obm-l] sistema decimal e inducao

2004-03-18 Por tôpico Artur Costa Steiner
] Subject: [obm-l] sistema decimal e inducao Ola pessoal, Fiquei em duvida nestes 2 problemas: 1) It is impossible to *reverse* a number by multiplying it by 2. In other words,there is no number of the form abcd, for example, such that abcd x 2 = dcba.That holds true for all numbers, not just four

[obm-l] sistema decimal e inducao

2004-03-17 Por tôpico Faelccmm
Ola pessoal, Fiquei em duvida nestes 2 problemas: 1) It is impossible to *reverse* a number by multiplying it by 2. In other words,there is no number of the form abcd, for example, such that abcd x 2 = dcba.That holds true for all numbers, not just four-digit ones. However,there is a

Re: [obm-l] sistema decimal e inducao

2004-03-17 Por tôpico Rafael
dos apertos de mão, então dividimos por dois: n(n-1)/2. Abraços, Rafael de A. Sampaio - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, March 18, 2004 2:18 AM Subject: [obm-l] sistema decimal e inducao Ola pessoal, Fiquei em duvida nestes 2