Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
State the expression involving the coefficients
a
1
,
b
1
,
a
2
,
b
2
a_1, b_1, a_2, b_2
a
1
,
b
1
,
a
2
,
b
2
of the pair of linear equations
a
1
x
+
b
1
y
+
c
1
=
0
a_1x + b_1y + c_1 = 0
a
1
x
+
b
1
y
+
c
1
=
0
and
a
2
x
+
b
2
y
+
c
2
=
0
a_2x + b_2y + c_2 = 0
a
2
x
+
b
2
y
+
c
2
=
0
whose non-zero value guarantees that the pair has a unique solution.
Browse the problem library