JEE Math Practice Question
The length of the latus rectum of a parabola, whose vertex and focus are on the positive x-axis at a distance R and S (> R) respectively from the origin, is :
- A.4(S + R)
- B.2(S $$-$$ R)
- C.4(S $$-$$ R)
- D.2(S + R)
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