determinant of matrix of order three. ❤❤❤❤❤❤❤❤❤please google se mt chepna .. plzzz . OR NO SPAM PLZZZ.JALDI BATAO .
Answers
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A Determinant is a single value that represents a square matrix. Third-Order Determinants. A Third-Order Determinantis the determinant of a 3 x 3 matrix.
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Answer:
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Explanation:
The determinant det(A) or |A| of a square matrix A is a number encoding certain properties of the matrix. Determinants are named after the size of the matrices. In the following example we will show how to determine the second order determinants.
Determinants of 3 × 3 matrices are called third-order determinants. One method of evaluating third-order determinants is called expansion by minors. The minor of an element is the determinant formed when the row and column containing that element are deleted.
Determinants could be used to find the area of a triangle if the coordinates of the vertices are known. If a triangles vertices are (a,b), (c,d) and (e,f) the area is
If A turns out to be negative then we must use the absolute value for A to have a nonnegative value for our area.
We received a negative value for A and an area cannot be negative, therefore we must take the absolute value for A:
∣A∣=∣−5.5∣=5.5
So the triangles area is 5.5 square units.
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