Final answer:
The inverse of the function F(x) = x^2+1 is F^-1(x) = sqrt(x - 1).
Step-by-step explanation:
The inverse of a function is found by swapping the variables and solving for the new variable. Given the function F(x) = x^2+1, we can find the inverse algebraically as follows:
Step 1: Replace F(x) with y to get the equation y = x^2+1.
Step 2: Swap x and y to get x = y^2+1.
Step 3: Solve the equation for y. Subtract 1 from both sides: x - 1 = y^2. Take the square root of both sides: sqrt(x - 1) = y.
Therefore, the inverse of the function is F-1(x) = sqrt(x - 1).