Posted by **Allan** on Wednesday, October 5, 2011 at 12:14pm.

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

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