Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The circumcentre of the triangle formed by the lines,
x
y
+
2
x
+
2
y
+
4
=
0
xy + 2x + 2y + 4 = 0
x
y
+
2
x
+
2
y
+
4
=
0
and
x
+
y
+
2
=
0
x + y + 2 = 0
x
+
y
+
2
=
0
is (A)
(
−
1
,
−
1
)
(-1, -1)
(
−
1
,
−
1
)
(B)
(
−
2
,
−
2
)
(-2, -2)
(
−
2
,
−
2
)
(C)
(
0
,
0
)
(0, 0)
(
0
,
0
)
(D)
(
−
1
,
−
2
)
(-1, -2)
(
−
1
,
−
2
)
Browse the problem library