[" 13.If the segment intercepted by the ...

[" 13.If the segment intercepted by the parabola "y^(2)=4a" with "],[" line "lx+my+n=0" subtends a right angle at the vertex to "],[[" (a) "4al+n=0," (b) "4al+4am+n=0],[" (c) "4am+n=0," (d) "al+n=0]]

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If the segment intercepted by the parabola y^(2)=4ax with the line lx+my+n=0 subtends a right angle at the vertex then:

If the segment intercepted by the parabola y^(2)=4 a x with the line lx+m y+n=0 subtends a right angle at the vertex, then

If the segment intercepted by the parabola y^2=4a x with the line l x+m y+n=0 subtends a right angle at the vertex, then

If the segment intercepted by the parabola y^2=4a x with the line l x+m y+n=0 subtends a right angle at the vertex, then (a) 4a l+n=0 (b) 4a l+4a m+n=0 (c) 4a m+n=0 (d) a l+n=0

If the segment intercepted by the parabola y^2=4a x with the line l x+m y+n=0 subtends a right angle at the vertex, then 4a l+n=0 (b) 4a l+4a m+n=0 4a m+n=0 (d) a l+n=0

If the segment intercepted by the parabola y=4ax with the line lx+my+n=0 subtends a right angle at the vertex,then 4al+n=0 (b) 4al+4am+n=04am+n=0 (d) al+n=0

[" 13.If the segment intercepted by the parabola "y^(2)=4a" with "],[" line "lx+my+n=0" subtends a right angle at the vertex to "],[[" (a) "4al+n=0," (b) "4al+4am+n=0],[" (c) "4am+n=0," (d) "al+n=0]]

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