A) 24/5
B) 12/5
C) 6/5
D) 1/5
Correct Answer: A
Solution :
Key Idea: Since the semi-latus rectum of a parabola is the HM of segments of a focal chord. \[\therefore \]Semi-latus rectum \[=\frac{2\,SP.SQ}{SP+SQ}\] \[=\frac{2\times 3\times 2}{3+2}=\frac{12}{5}\] \[\therefore \] Latus rectum of the parabola \[=\frac{24}{5}.\]You need to login to perform this action.
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