All BASICSTANDARDADVANCED

Question 4

If O is any point on the axis of a parabola and POP’ be any chord passing through O, and if PM and PʹMʹ be the ordinates of P and Pʹ, prove that AM . AMʹ =AO2 and PM . PʹMʹ = −4a . AO, where A is the vertex.

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  CLEAR