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solve examples on 3x3 matrics

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Understand the meaning and significance of a determinant.

Recall the rules for calculating determinants of 2×2 and 3×3 matrices.

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Students will be able to calculate the determinant of a 2×2 matrix.

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Students will be able to calculate the determinant of a 3×3 matrix using Sarrus’ Rule or cofactor expansion.

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Students will be able to identify when a matrix is singular (determinant = 0).

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Topic: Determinant of a Matrix

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Finding the determinants of 2x2 matrix using white board and pen

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Identify singular matrix

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Small examples will be given to the students we will set the time and winner will be the student who will solve in less time

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What is a determinant? Why might we need it in linear algebra?

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 worksheet for homework on calculating determinants and identifying properties.

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 worksheet for homework on calculating determinants and identifying properties.