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For a focal chord PQ of the parabola y^(...

For a focal chord PQ of the parabola `y^(2)=4ax` if SP =l and SQ=l then prove
that `(1)/(l)+(1)/(l)+(1)/(a).`

Text Solution

Verified by Experts

The correct Answer is:
`ll-a(l+l)=0rArr(1)/(l)+(1)/(l)+(1)/(a).`
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