MAC1140 Precalculus – Section 9.3 Matrix Operations & Matrix Multiplication | May 20, 2026
In this lesson, we continue Chapter 9 with matrix operations, matrix multiplication, and exam review problems. Topics include: matrix notation and dimensions, equality of matrices, matrix addition and subtraction, scalar multiplication and its properties, solving matrix equations, conditions for matrix multiplication, computing matrix products step-by-step, properties and warnings for matrix multiplication. Examples are solved step-by-step with an emphasis on organization, calculator support, problem-solving strategies, and avoiding common mistakes.
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MAC1140 Precalculus – Section 9.5 Determinants and Cramer’s Rule | May 21, 2026
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MAC1140 Precalculus – Section 8.3: Partial Fraction Decomposition (Part 1) | May 26, 2026
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MAC1140 Precalculus – Section 9.1 Matrix Solutions to Linear Systems and Applications | May 19, 2026
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MAC1140 Precalculus – Section 3.4 Zeros of Polynomial Functions | June 3, 2026
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