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Question

The co – ordinates of the extremities of the latus rectum of the parabola 5y2=4x are

A
(15,25),(15,25)
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B
(15,25),(15,25)
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C
(15,45),(15,45)
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D
None of these
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Solution

The correct option is B (15,25),(15,25)
The given parabola is of the form y2=4ax
End points of latus rectum of this parabola are (a,2a) and (a, -2a).
y2=4.15x;a=15
=> End points of latus are (15,±25)


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