(a) Find x, y, z and B, where Го A= 1 A²=1; c(4+1)+3B=2P, and 7: unit matrix (b) Using properties of determinants, prove without open the determinant that: a b+d b c+a=0 (0-6) eb-d 619 8449 819
(a) Find x, y, z and B, where Го A= 1 A²=1; c(4+1)+3B=2P, and 7: unit matrix (b) Using properties of determinants, prove without open the determinant that: a b+d b c+a=0 (0-6) eb-d 619 8449 819
Chapter7: Systems Of Equations And Inequalities
Section7.8: Solving Systems With Cramer's Rule
Problem 3SE: Explain what it means in terms of an inverse for a matrix to have a 0 determinant.
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Transcribed Image Text:(a) Find x, y, z and B, where
Го
A= 1
A²=1; c(4+1)+3B=2P, and 7: unit matrix
(b) Using properties of determinants,
prove without open the determinant that:
a
b+d
b c+a=0 (0-6)
eb-d
619
8449
819
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