Which one of the following equations represent parametric equation to a parabolic curve?
(A) \( ... VIDEO
Which one of the following equations represent parametric equation to a parabolic curve?
(A) \( x=3 \cos t ; y=4 \sin t \)
(B) \( x^{2}-2=2 \cos t ; y=4 \cos ^{2} \frac{t}{2} \)
(C) \( \sqrt{x}=\tan t ; \sqrt{y}=\sec t \)
(D) \( x=\sqrt{1-\sin t} ; y=\sin \frac{t}{2}+\cos \frac{t}{2} \)
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