1.觀察下列兩個(gè)等式:
,
,給出定義如下:若對(duì)于數(shù)對(duì)(a,b),使等式a+b=ab+4成立,則稱(chēng)數(shù)對(duì)(a,b)是“4相關(guān)數(shù)對(duì)”,如:2+(-2)=2×(-2)+4,所以數(shù)對(duì)(2,-2)是“4相關(guān)數(shù)對(duì)”.
(1)數(shù)對(duì)(4,0),(1,1)中是“4相關(guān)數(shù)對(duì)”的是
;
(2)一名同學(xué),在數(shù)對(duì)(m,n)和(-m,-n)都是“4相關(guān)數(shù)對(duì)”的條件下,得到下面兩條結(jié)論:
結(jié)論一:m和n互為相反數(shù);
結(jié)論二:m和n互為倒數(shù).
請(qǐng)你判斷,兩條結(jié)論是否正確,并說(shuō)明理由.