Question

what is the sum of those two numbers whose reciprocals are equal to itself?​

Answer 1

Answer:

Suppose you have a number x which is equal to its reciprocal.

Which means,

1/x = x

Simplifying this, we will have

x^2 = 1

Therefore x=√1

From here we will have x=+1 or -1

So it is clear that there are only two numbers which are equal to their reciprocals, and they are +1 and -1.