GATE2014-1

Question

Given 

$x(t)=3\sin (1000\; \pi t)\; and\;y(t)=5\cos (1000\;\pi t+\frac{\pi}{4})$

The $x-y$ plot will be

• A. a circle
• B. a multi-loop closed curve
• C. a hyperbola
• D. an ellipse