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Mathematics
Mathematics
Problem
If two tangents drawn from a point
P
P
P
to the parabola
y
2
=
4
x
y^2 = 4x
y
2
=
4
x
are at right angles, the locus of
P
P
P
is a.
2
x
+
1
=
0
2x + 1 = 0
2
x
+
1
=
0
b.
x
=
−
1
x = -1
x
=
−
1
c.
2
x
−
1
=
0
2x - 1 = 0
2
x
−
1
=
0
d.
x
=
1
x = 1
x
=
1
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