An example with answer I have goes;
x = 6 cos t
y = sqrt 11 sin t
Write down the equation of the conic & state what type of conic it is.
trig identity cos2t + sin2t = 1
x2 / 62 + y2 / (sqrt 11)2 = 1 . . . . . . . .
er! how does this happen, if you could help!