dv/dt = 1 + 1/t^2
since dt/dt = 1 and d(1/t)/dt = -1/t^2
how did you get -2/t ?
By definition as h goes to 0.I first changed . Plugged that in and got . Common denominator is . Then it becomes . Then . Then . Then Substitute in for and you are left with
Edit: Looks like 2 crosses out in the numerator so you are left with ... hows this?