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下列各对数中,互为相反数的有()-1与±(-1),+(+1)与-1,-(-2)与+(-2),+[-(+1)]与-[+(-1)],-(-12)与+(+12),-(+2)与-(-2)A

题目详情
下列各对数中,互为相反数的有(  )                   
-1与±(-1),+(+1)与-1,-(-2)与+(-2),+[-(+1)]与-[+(-1)],-(-
1
2
)与+(+
1
2
),-(+2)与-(-2)
A.6对 B.5对 C.4对 D.3对
▼优质解答
答案和解析
由相反数的定义可知:+(+1)与-1,-(-2)与+(-2),+[-(+1)]与-[+(-1)],-(+2)与-(-2)互为相反数,
共有4对,
故选C.