3. Let A= 2 3 5 4 a. Find A using the formula for the inverse of a 2x2 matrix. b. Write the following system of equations as a matrix equation of the form AX=B. Then solve the system using A-¹. 2x+3y=-9 5x+4y=-5
3. Let A= 2 3 5 4 a. Find A using the formula for the inverse of a 2x2 matrix. b. Write the following system of equations as a matrix equation of the form AX=B. Then solve the system using A-¹. 2x+3y=-9 5x+4y=-5
Chapter4: Systems Of Linear Equations
Section4.5: Solve Systems Of Equations Using Matrices
Problem 202E: Write the system of equations that that corresponds to the augmented matrix. 202. [103120012| 1 23]
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Transcribed Image Text:3. Let A=
a.
2 3
5 4
Find A¹ using the formula for the inverse of a 2x2 matrix.
b. Write the following system of equations as a matrix equation of the form AX-B. Then solve the
system using A-1¹.
2x+3y=-9
5x+4y=-5
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