Find T, N, and к for the plane curve r(t) = 9t i + 9 In (cos t) j, - T(t)=(☐)i+(☐)j N(t) = ( ☐ ) i + (☐) K(t) = π -

Consider the curve C parametrized byx = (t^2+1)/(t^2-1) and y = (2t)/(t^2-1) for all t in (−∞, −1 ) ∪ (−1, 1) ∪ (1, ∞) .By squaring both x and y, find an equation of C in terms of just x and y (no t):