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Problem
Problem
If the normal to the parabola
y
2
=
4
a
x
y^2 = 4ax
y
2
=
4
a
x
at point
t
1
t_1
t
1
cuts the parabola again at point
t
2
t_2
t
2
, prove that
t
2
2
=
8
t_2^2 = 8
t
2
2
=
8
.
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