. Por-outro-lado, + k 1 = r donde segue que j , = r ? 1. Logo 3 = k r?1 = [k r?2 + k 1 ], e portanto k r?2 + k 1 = r + 3 = k 1 + 6, donde temos k r?2 = 6, Com isso temos que (w 4 , w 5 ) ? [w 3

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