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Cramer's Rule
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Cramer's Rule
Cramer's Rule may be used for solving the system of equations:
ax + by = e
cx + dy = f
The solutions for
x
and
y
may be expressed as:
For the case of
e
=
f
= 0:
ax + by =
0
cx + dy =
0
the trivial solution of
x
=
y
= 0 always exists.
Example
:
Using Cramer's Rule, solve the set of equations:
3
x +
2
y =
18
4
x +
6
y =
48
Solution
:
Related Topics
:
Matrices
Determinants