閱讀材料:
規(guī)定(a,b)表示一對(duì)數(shù)對(duì),給出如下定義:
,
.將(m,n)與(n,m)稱為數(shù)對(duì)(a,b)的一對(duì)“對(duì)稱數(shù)對(duì)”.例如:數(shù)對(duì)(4,1)的一對(duì)“對(duì)稱數(shù)對(duì)”為
與
.
(1)數(shù)對(duì)(4,3)的一對(duì)“對(duì)稱數(shù)對(duì)”是
與
;
(2)若數(shù)對(duì)(2,y)的一對(duì)“對(duì)稱數(shù)對(duì)”相同,則y的值是多少?
(3)若數(shù)對(duì)(a,b)一個(gè)“對(duì)稱數(shù)對(duì)”是
,求a、b的值.