Let a be the smallest positive integer, b the largest negative integer, c the smallest absolute value, number, and d be the rational number whose reciprocal equals itself, then a+b+c+d is ______. Let a be the smallest positive integer, b the largest negative integer, c the smallest absolute value, and d the reciprocal equal to its rational number, then a+b+c+d is ______.

Let a be the smallest positive integer, b the largest negative integer, c the smallest absolute value, number, and d be the rational number whose reciprocal equals itself, then a+b+c+d is ______. Let a be the smallest positive integer, b the largest negative integer, c the smallest absolute value, and d the reciprocal equal to its rational number, then a+b+c+d is ______.

According to the meaning, a=1, b=-1, c=0, d=1 or -1,
When d=1, a+b+c+d=1-1+0+1=1;
When d=-1, a+b+c+d=1-1+0-1=-1;
The answer is 1 or -1.

The rational number whose square is equal to itself is () and the rational number whose cube is equal to itself is () There's a pattern and a process that I can understand ~ Square equals its own rational number is () and cube equals its own rational number is () There must be regularity and process, so that I can understand ~ Square equals its own rational number is () and cube equals its own rational number is () There's a pattern and a process that makes me understand ~

1 Or 0
1 Or 0 or -1