Asked by Anonymous
solve using cramer's rule
3x+4y=-1
5x-2y=4
3x+4y=-1
5x-2y=4
Answers
Answered by
MathMate
First calculate the determinant D of
3 4
5 -2
=3*(-2)-4*5=-26
Replace the first column by the RHS,and calculate determinant D1
-1 4
4 -2
=(-1)(-2)-4*4
=-14
Replace the column with the RHS and calculate determinant D2
3 -1
5 4
=3*4-(-1)*5
=17
x=D1/D=-14/-26=7/13
y=D2/D=17/-26=-17/26
3 4
5 -2
=3*(-2)-4*5=-26
Replace the first column by the RHS,and calculate determinant D1
-1 4
4 -2
=(-1)(-2)-4*4
=-14
Replace the column with the RHS and calculate determinant D2
3 -1
5 4
=3*4-(-1)*5
=17
x=D1/D=-14/-26=7/13
y=D2/D=17/-26=-17/26
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.