Intermediate Algebra (7th Edition)
Intermediate Algebra (7th Edition)
7th Edition
ISBN: 9780134196176
Author: Elayn Martin-Gay
Publisher: PEARSON
Question
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Chapter C, Problem 1VRC
To determine

The value of given determinant.

Expert Solution & Answer
Check Mark

Answer to Problem 1VRC

Solution:

The value of given determinant |7208| is 56.

Explanation of Solution

Concept:

Determinant of a 2×2 matrix is given by,

|abcd|=adbc

Given:

The given matrix is |7208|

Calculation:

Observe the given matrix and identify the values of a,b,c and d.

|7208|

From the matrix value of a,b,c and d are 7,2,0 and 8 respectively,

Substitute 7 for a, 2 for b, 0 for c and 8 for d in the formula to evaluate the determinant,

|7208|=(7×82×0)=560=56

Final Statement:

Thus, the value of given determinant |7208| is 56.

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