Work Problem Given the matrix x00 A =0 -4 O O 0 -5 a) Find the value of x, for which determinant of A is 120. b) Use value of x found in part a to find Ad(A).
Work Problem Given the matrix x00 A =0 -4 O O 0 -5 a) Find the value of x, for which determinant of A is 120. b) Use value of x found in part a to find Ad(A).
Chapter7: Systems Of Equations And Inequalities
Section7.8: Solving Systems With Cramer's Rule
Problem 1SE: Explain why we can always evaluate the determinant of a square matrix.
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Question
Solve both parts
Transcribed Image Text:Work Problem
Given the matrix
x0 0
A =0 -4 O
O O -5
a) Find the value of x, for which determinant of A is 120.
b) Use value of x found in part a to find Ad(A).
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