A) A circle
B) A parabola
C) An ellipse
D) A hyperbola
Correct Answer: C
[c] $ x=2\cos ,t+sin,t $ $ y=5(cos,t-sin,t)\Rightarrow \frac{x^{2}}{4}+\frac{y^{2}}{25}=2\Rightarrow $ Ellipse
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