Let A be an 8 x 8 matrix with det (A) = -2. Let B be the matrix that can be obtained by applying the following row operations to A: • R6 · R5 • R4-3R4 R5 R5 + 5R7 ● What is det (B)? det (B) = number (1 digits after decimal)

Let A be an 8 x 8 matrix with det (A) = -2. Let B be the matrix that can be obtained by applying the following row operations to A: • R6 · R5 • R4-3R4 R5 R5 + 5R7 ● What is det (B)? det (B) = number (1 digits after decimal)

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter7: Systems Of Equations And Inequalities

Section7.7: Solving Systems With Inverses

Problem 3SE: Can you explain whether a 2×2 matrix with an entire row of zeros can have an inverse?

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Question

HANDWRITTEN ONLY...needed urgently solve it as quick as possible...

Let A be an 8 x 8 matrix with det(A) = −2. Let B be the matrix that can be obtained by applying the
following row operations to A:
• R6
R5
• R5 → R5 +5R7
R4-3R4
What is det (B)?
det (B) =
=
number (1 digits after decimal)
?

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