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1 of 8
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Lesson
Practice
Identify and construct the identity matrix
DIFFICULTY
intro
standard
challenge
exam
QUESTION TYPE
Mix of all
Change
Write out the identity matrix
Pick the identity from a set
NOW
Mix of all
Recommended
Question 1 of 8
No calculator
Five matrices are shown as options
1 mark
Select the identity matrix
\(I_2\)
\[\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}\]
\[\begin{bmatrix} 0 & 0 \\ 0 & 0 \end{bmatrix}\]
\[\begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}\]
\[\begin{bmatrix} 0 & 1 \\ 1 & 0 \end{bmatrix}\]
\[\begin{bmatrix} 1 & 1 \\ 1 & 1 \end{bmatrix}\]
CHECK
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