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cguzman4993
04.08.2021 •
Mathematics
NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW. Ch. 15 part 1a How can a matrix be used to solve a system of equations. Demonstrate by solving the following system. Show your work.
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Ответ:
We are given the equations:
x - 3y = 2
3x - 4y = 0
writing the system as matrices
which is in the form:
AX = B
solving for X(the matrix holding the variables), we get:
X = (A⁻¹)B
Finding A⁻¹:
now, to do this, we need to find the inverse of A
using this formula to find the inverse of matrix A:
Matrix X:
We know that:
X = A⁻¹B
since matrix X is just a matrix with the variables
x = -8/5
y = -6/5
Ответ:
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Step-by-step explanation:
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