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📈 Optional Mathematics - Class 10
Lesson 6 · Inverse Matrix

Determinant of Matrix Presentation

Optional MathematicsSubject
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Optional Mathematics, Class 10: Matrices

Determinant of Matrix

Order one and order two · Singular and non-singular

By the end of this lesson you can

🔢

Say what a determinant is and how it is written

1️⃣

Find the determinant of an order one matrix

✖️

Find a 2 by 2 determinant as \( ad - bc \)

⚖️

Tell singular from non-singular matrices

Matrix or determinant?

🧱Matrix
Written in square brackets
A table of numbers
Any order
VS
🎯Determinant
Written between vertical bars
One number, a scalar
Square matrices only

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Presenter notes: Today we learn to turn a whole square matrix into one number, called its determinant. That number tells us something important about the matrix.