Hi, I have this question that I can't seem to work out.
I need to find where
I can't seem to work out an inverse function.
I tried to say
But how can I solve for a?
You have the polynomial equation
From the rational roots theorem we now the only root are the factors of
13 divided by the factors of 7
So if we check this finite list we see that
this tells us that -1 is a solution to the equation.
We know this is the only solution because the derivative of f is alwasy posative so the function is 1-1.
Good luck. TES