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Title: Matrices
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Series: Linear Algebra
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Chapter: Matrices and linear systems
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YouTube-Title: Linear Algebra 11 | Matrices
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Bright video: https://youtu.be/sCzd7fXxFds
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Dark video: https://youtu.be/_sS8-H9uUdU
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Ad-free video: Watch Vimeo video
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Forum: Ask a question in Mattermost
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Quiz: Test your knowledge
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Dark-PDF: Download PDF version of the dark video
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Print-PDF: Download printable PDF version
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Exercise Download PDF sheets
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Thumbnail (bright): Download PNG
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Thumbnail (dark): Download PNG
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Subtitle on GitHub: la11_sub_eng.srt missing
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Download bright video: Link on Vimeo
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Download dark video: Link on Vimeo
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Timestamps (n/a)
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Subtitle in English (n/a)
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Quiz Content
Q1: The matrix $$ \begin{pmatrix} 0 & \sqrt{2} & 1 \ 1 & \sqrt{3} & 0 \end{pmatrix}$$ is an element of which set?
A1: $ \mathbb{R}^{2 \times 3}$
A2: $ \mathbb{R}^{1 \times 3}$
A3: $ \mathbb{R}^{3 \times 2}$
A4: $ \mathbb{R}^{2 \times 2}$
Q2: What is the neutral element with respect to the addition in $\mathbb{R}^{3 \times 2}$?
A1: $ \begin{pmatrix} 0 & 0 \ 0 & 0 \ 0 & 0 \end{pmatrix}$
A2: $ \begin{pmatrix} 0 & 0 & 0 \ 0 & 0 & 0 \end{pmatrix}$
A3: $ \begin{pmatrix} 1 & 1 & 1 \ 1 & 1 & 1 \end{pmatrix}$
A4: $ \begin{pmatrix} 0 & 0 \ 0 & 0 \end{pmatrix}$
Q3: Is the equation $$ 2 \cdot \begin{pmatrix} 1 & 2 \ 2 & 4 \end{pmatrix} = \begin{pmatrix} 1 & 2 \ 2 & 4 \end{pmatrix} + \begin{pmatrix} 1 & 2 \ 2 & 4 \end{pmatrix}$$ correct?
A1: Yes!
A2: No!
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Last update: 2024-10
