1. The problem statement, all variables and given/known data 6. Show that the parametrized curve r=<t+(1/t),t-(1/t),8> lies on the curve f(x, y) = x^2 - y^2 + 4? Show your calculations. 2. The attempt at a solution I don't know where to start. I've just been plugging in random x and y and t values and haven't had any luck or insight on how to solve this problem. Any help appreciated.