If from a positive number, twice its reciprocal is subtracted, we get 1. Then the number is ___.
Suppose the number be x
According to the given condition
Using quadratic formula, x=−b±√2a
Here, a=1,b=−1 and c=−2
As the number is positive, ignore negative value.
Hence, x = 2
∴ The required number is 2.