Question
The curve represented by $x=3(\cos t+\sin t), y=4(\cos t-\sin t)$ is(a) an ellipse(b) a circle(c) a hyperbola(d) a parabola
Step 1
We can rewrite these equations as $\frac{x}{3}=\cos t+\sin t$ and $\frac{y}{4}=\cos t-\sin t$. Show more…
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