Finding the range of function y = x + 1 / X (x ≠ 0) y=x+(1/x)

Finding the range of function y = x + 1 / X (x ≠ 0) y=x+(1/x)

Using the basic inequality, y is greater than or equal to 2 * followed by X * 1 / X (x is greater than 0), that is, y is greater than or equal to 2
When x is less than 0, y is less than or equal to - 2
So the range is negative infinity to - 2 and 2 to positive infinity, and the interval is open
This function is commonly known as the hook function in high school