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Problem
Problem
A ray of light travels along a line
y
=
4
y = 4
y
=
4
and strikes the surface of curves
y
2
=
4
(
x
+
y
)
y^2 = 4(x + y)
y
2
=
4
(
x
+
y
)
, then the equation of the line along which the reflected ray travels is a.
x
=
0
x = 0
x
=
0
b.
x
=
2
x = 2
x
=
2
c.
x
+
y
=
4
x + y = 4
x
+
y
=
4
d.
2
x
+
y
=
4
2x + y = 4
2
x
+
y
=
4
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