Question 2 • Advanced Algebra: Concepts and Connections
Which of the following represents the inverse of the matrix? cap A is equal to the 2 by 2 matrix row 1, A b row 2, c d
Answer
A
the fraction with numerator 1 and denominator absolute value of cap A the 2 by 2 matrix, row 1, column 1, negative d column 2, b row 2, column 1, c column 2, negative A
B
the fraction with numerator 1 and denominator absolute value of cap A the 2 by 2 matrix, row 1, column 1, d column 2, negative c row 2, column 1, negative b column 2, A
C
the fraction with numerator 1 and denominator absolute value of cap A the 2 by 2 matrix, row 1, column 1, A column 2, negative b row 2, column 1, negative c column 2, d
D
the fraction with numerator 1 and denominator absolute value of cap A the 2 by 2 matrix, row 1, column 1, d column 2, negative b row 2, column 1, negative c column 2, A