MATH221 · Chapter 6 · Annotated SlidesLinear Algebra and Matrix Inversion
Original
Overview

Linear Algebra and Matrix Inversion

Matrix algebra and inversion: nonsingular matrices and computing inverses.

How to read this page

Every original slide is shown unchanged. Yellow marks on a slide point to a numbered note: hover or tap a mark to jump to its note, and hover a note to see its marks. Questions tagged Past exam appeared on a real paper; Prediction questions are likely angles, not confirmed. Pick an answer to each question: a wrong pick tells you why it is wrong, so you can try again.

All 2 slides
  1. 1 Slide 1
  2. 2 Determine whether the matrix has a determinant, if it does find the inverse.
Slide 1 / 2

Slide 1

Slide 1: Slide 1
Slide 2 / 2

Determine whether the matrix has a determinant, if it does find the inverse.

Slide 2: Determine whether the matrix has a determinant, if it does find the inverse.

Notes

  1. A is nonsingular ⇔ A⁻¹ exists ⇔ det A ≠ 0 ⇔ Ax = 0 has only x = 0.