Courses
Teacher-curated, self-paced courses. Looking for a guided sequence through a full topic? See Learning Paths.
3 courses
Matrices and Matrix Algebra New
Mathematics · High School (11–12) · Matrices and Determinants
FreeCh 8 · 1/3
What a matrix is and the kinds of matrix you meet: square, zero, identity, diagonal and triangular. Then adding matrices, multiplying them and why the order of a product matters, and the transpose with symmetric and skew-symmetric matrices.
3Lessons11Problems2Python Labs1Question Set1Mock Test
Determinants New
Mathematics · High School (11–12) · Matrices and Determinants
FreeCh 8 · 2/3
The determinant of a 2 by 2 and a 3 by 3 matrix, minors and cofactors, and expansion along any row or column. Then the properties that make a large determinant easy, and the area of a triangle and the test for three points on a line.
3Lessons10Problems2Python Labs1Question Set1Mock Test
Inverse of a Matrix and Systems of Linear Equations New
Mathematics · High School (11–12) · Matrices and Determinants
FreeCh 8 · 3/3
The adjoint and the inverse of a matrix, and the test for a matrix that has no inverse. Then solving systems of two and three equations with the inverse, deciding when there is one solution, none or infinitely many, and finding the inverse by row operations. Cramer's rule and models from real life are included.
3Lessons10Problems2Python Labs1Question Set1Mock Test