-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是多少
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![-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是多少](/uploads/image/z/12246858-18-8.jpg?t=-%28-%28-%28...%28-7%29...%29%29%292n%2B1%E4%B8%AA%E8%B4%9F%E5%8F%B7%EF%BC%88n%E4%B8%BA%E6%95%B4%E6%95%B0%EF%BC%89%E7%9B%B8%E5%8F%8D%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91)
-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是多少
-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是多少
-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是多少
负负得正,奇数个负号,最后化简是-7,而-7的相反数是7
所以-(-(-(...(-7)...)))2n+1个负号(n为整数)相反数是7
7
1/7>( )>( )>2/7
2--7
2/7
2/7
填上合适的符号使得等式成立7 7 7 7 =2 7 7 7 7 =3 7 7 7 7 =4 7 7 7 7 =5 7 7 7 7=6 7 7 7 7 =7 7 7 7 7=7 7 7 7 =9 7 7 7 7 =14
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