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Linear Algebra With Applications
Found in: Page 307
Linear Algebra With Applications

Linear Algebra With Applications

Book edition 5th
Author(s) Otto Bretscher
Pages 442 pages
ISBN 9780321796974

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Short Answer

Use Cramer's rule to solve the systems in Exercises 22 through 24.

23. |5x1-3x2=1-6x1+7x2=0|



See the step by step solution

Step by Step Solution

Step 1: Definition. 

In matrices, Cramer's rule expresses the solution in terms of the determinants of the coefficient matrix (i.e., for a square matrix) and of matrices obtained from it by replacing one column by the column vector of right-hand-sides of the equations.

Step 2: To solve. 

Using Cramer's rule, we solve:

det A=5-3-67det A=17x1=1-30717x1=717x2=51-6017 x2=617



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