A curve C C\,C has parametric equations
x=tant+2,y=sec2t−10≤t≤2π x = \tan t + 2, \quad y = \sec^2 t - 1 \quad 0 \leq t \leq 2\pi x=tant+2,y=sec2t−10≤t≤2πFind an equation for C C\,C in the form y=f(x)y = f(x)y=f(x) and state the domain for which the curve is defined.
Sketch the curve