Consider the linear systemAx = b,where A is an invertible matrix. We can solve this
Chapter 2, Problem 46(choose chapter or problem)
Consider the linear systemAx = b,where A is an invertible matrix. We can solve this system in two different ways: By finding the reduced row-echelon form of the augmented matrix [A j b] By computing A " 1 and using the formula x = A ~1 bIn general, which approach requires fewer multiplicative operations? See Exercise 45.
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