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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
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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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