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Byju's Answer
Standard XII
Mathematics
Two Point Form of a Line
Area of the t...
Question
Area of the triangle formed by the line
x
+
y
=
3
and the angle bisectors of the pairs of straight lines
x
2
−
y
2
+
2
y
=
1
is?
Open in App
Solution
x
2
−
y
2
+
2
y
=
1
x
2
=
(
y
−
1
)
2
Hence, the two lines are =
y
=
−
x
+
1
and
y
=
x
+
1
Equation of angle bisectors of these lines
x
=
0
and
y
=
1
Intersection between the 3 lines is
A
(
0
,
3
)
,
B
(
0
,
1
)
,
C
(
2
,
1
)
It can be seen that as the points A and B lie on y-axis only and BC is parallel to x-axis. Hence,
△
A
B
C
is a right angled triangle.
A
r
e
a
=
1
2
×
A
B
×
B
C
⟹
1
2
×
2
×
2
⟹
2
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Q.
Area of the triangle formed by the line
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