What is the reciprocal of the reciprocal of a number?
0
1
The Number itself
C.
The Number itself
How many rational numbers are there between two consective rational numbers?
None
Only one
Infinitely many
C.
Infinitely many
Which rational number are equal to their reciprocals?
(-1) and 0
0 and 1
1 and (-1)
C.
1 and (-1)