1) The conic represented by x = 2 (cos t + sin t), y = 5 (cos t - sin t) is A) a circle B) a parabola C) an ellipse D) a hyperbola Answer: Option CExplanation:From given equations x/2 = cos t + sin t y/5 = cos t - sint Eliminating t from these equations, we have $\frac{x^{2}}{4}+\frac{y^{2}}{25}$ = 2 $\frac{x^{2}}{8}+\frac{y^{2}}{50}$ = 1 is an ellipse
