In Exercises 39–42, calculate the solution by using a matrix equation. { x + 4 y − z + 2 w = 9 3 x − 8 y + 2 z + 4 w = − 2 − x − 3 y + 7 z − 6 w = 10 4 x + 2 y − 3 z + w = − 6
In Exercises 39–42, calculate the solution by using a matrix equation. { x + 4 y − z + 2 w = 9 3 x − 8 y + 2 z + 4 w = − 2 − x − 3 y + 7 z − 6 w = 10 4 x + 2 y − 3 z + w = − 6
Solution Summary: The author calculates the solution to the matrix equation AX=B by using a graphing calculator.
In Exercises 5–8, use the definition of to write the matrix equation as a vector equation, or vice versa.
In Exercises 5–8, use the definition of Ax to write the matrix equation as a
vector equation, or vice versa.
5.
5 1 8 4
-2 -7 3 −5
5
-1
3
-2
=
-8
-
[18]
16
Use Cramer’s rule to compute the solutions of the systems in Exercises 1–6.
Chapter 2 Solutions
Finite Mathematics & Its Applications (12th Edition)
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RELATIONS-DOMAIN, RANGE AND CO-DOMAIN (RELATIONS AND FUNCTIONS CBSE/ ISC MATHS); Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=u4IQh46VoU4;License: Standard YouTube License, CC-BY