Asked by Allan
Find the inverses of the matrices.
Let A = 1 2
5 12
b1 = -1
3
b2 = 1
-5
b3 = 2
6
b4 = 3
5
Find A^-1, and use it to solve the four equations.
Ax = b1, Ax = b2, Ax = b3, Ax = b4
Let A = 1 2
5 12
b1 = -1
3
b2 = 1
-5
b3 = 2
6
b4 = 3
5
Find A^-1, and use it to solve the four equations.
Ax = b1, Ax = b2, Ax = b3, Ax = b4
Answers
Answered by
Steve
Only A has an inverse. Only square matrices have inverses. A^-1 =
6 -1
-5/2 1/2
Now just plug it in
6 -1
-5/2 1/2
Now just plug it in