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Mathematics 18 Online
OpenStudy (anonymous):

A double ordinate parabola [y^2=2ax] is of length 4a. prove that the lines joining the vertex to its ends are at right angles.............here.. i dont understand by the lenght=4a... please help me

OpenStudy (anonymous):

helpppppppppppp

OpenStudy (anonymous):

Which class question is this and which chapter?

OpenStudy (anonymous):

its from grade 12th mathemaics- conic section

OpenStudy (anonymous):

Oh, sorry brother. I am in class 10. So can't do. I will ask someone. Don't mind.

OpenStudy (anonymous):

ok :D

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