questions on attachment!!

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- July 22nd 2006, 07:05 AMLane5 math ?'s Need Help URGENT!!!
questions on attachment!!

- July 22nd 2006, 08:26 AMSoroban
Hello, Lane!

Here's some help . . .

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1) What is the augmented matrix for: .

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2) Perform the row operation on the matrix: .

. . Multiply by

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3) Perform the sequence of row operations on: .

A: swap and

B: replace by plus times

C: replace by plus times

. .

. .

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4) If possible, solve the system of equation using Gaussian elimination with back-substitution.

. .

The determinant is . . . I expect a*very*messy elimination.

I'll let someone else work on it . . .

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5) If possible solve the system of equation using an inverse matrix.

. .

Not possible . . . the determinant is .