is a chord of the parabola with vertex . is drawn is drawn perpendicular to meeting the axis at. The projection of on the axis of the parabola is |
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a) |
b) |
c) |
d) |
is a chord of the parabola with vertex . is drawn is drawn perpendicular to meeting the axis at. The projection of on the axis of the parabola is |
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a) |
b) |
c) |
d) |