Class 12 Maths · Chapter 4 · CBSE / NCERT
Determinants
One number that tells a lot about a square matrix. You’ll learn to work out determinants, find areas with them, use minors, cofactors and the adjoint, and solve equations.
14 short lessons · about 64 minutes in all
What you’ll learn
- 1What a determinant is4 min
- 2The determinant of a 2 by 2 matrix4 min
- 3Working out a 3 by 3 determinant5 min
- 4What scaling a matrix does to its determinant4 min
- 5The area of a triangle from a determinant5 min
- 6Points on one line, and the line through two points4 min
- 7The minor of an entry4 min
- 8Cofactors: minors with a sign5 min
- 9The adjoint of a matrix5 min
- 10Singular and non-singular matrices4 min
- 11Finding the inverse with the adjoint5 min
- 12The inverse from a matrix equation5 min
- 13Solving equations with the inverse5 min
- 14When equations have one, none or many solutions5 min
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What a determinant is · about 4 minutes
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More Class 12 Maths
The other 12 chapters.
CH 1Relations and Functions14 lessonsCH 2Inverse Trigonometric Functions14 lessonsCH 3Matrices14 lessonsCH 5Continuity and Differentiability14 lessonsCH 6Application of Derivatives12 lessonsCH 7Integrals18 lessonsCH 8Application of Integrals10 lessonsCH 9Differential Equations14 lessonsCH 10Vector Algebra14 lessonsCH 11Three Dimensional Geometry14 lessonsCH 12Linear Programming12 lessonsCH 13Probability14 lessons
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