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Find the angle between a diagonal of a cube and one of its edges
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Find the angle between a diagonal of a cube and one of its edgesFind the angle between a diagonal of a cube and one of its edges ...
by MathsGee Platinum
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asked in Mathematics Jan 26
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Let \(A:=\left(\begin{array}{rrr}4 & 4 & 4 \\ -2 & -3 & -6 \\ 1 & 3 & 6\end{array}\right)\). Compute
0 answers 217 views
Let \(A:=\left(\begin{array}{rrr}4 & 4 & 4 \\ -2 & -3 & -6 \\ 1 & 3 & 6\end{array}\right)\). ComputeLet \(A:=\left(\begin{array}{rrr}4 & 4 & 4 \\ -2 & -3 & -6 \\ 1 & 3 & 6\end{array}\right)\). Compute a) the characteristic po ...
by MathsGee Platinum
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asked in Mathematics Jan 21
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Find an example of \(2 \times 2\) matrices \(A\) and \(B\) so that \(A B=0\) but \(B A \neq 0\).
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Find all four \(2 \times 2\) diagonal matrices \(A\) that have the property \(A^{2}=I\). Geometrically interpret each of these examples as linear maps.

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Let \(A=\left(\begin{array}{rrr}1 & 1 & -1 \\ 1 & -1 & 2\end{array}\right)\)
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Let \(A=\left(\begin{array}{rrr}1 & 1 & -1 \\ 1 & -1 & 2\end{array}\right)\)Let \(A=\left(\begin{array}{rrr}1 & 1 & -1 \\ 1 & -1 & 2\end{array}\right)\) a) Find the general solution \(\mathbf{Z}\) of the homog ...
by MathsGee Platinum
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asked in Mathematics Jan 20
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Find the inverse of the matrix $$ A=\left(\begin{array}{rrr} 2 & 0 & 4 \\ 1 & 2 & 7 \\ 6 & 4 & 22 \end{array}\right) $$
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What do you mean by the principal diagonal of the matrix?
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What do you mean by the principal diagonal of the matrix?What do you mean by the principal diagonal of the matrix? ...
by MathsGee Platinum
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asked in Mathematics Jul 24, 2021
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"Every identity matrix is a diagonal matrix" True or False? Justify your answer.
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"Every identity matrix is a diagonal matrix" True or False? Justify your answer."Every identity matrix is a diagonal matrix" True or False? Justify your answer. ...
by MathsGee Platinum
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asked in Mathematics Jul 24, 2021
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What is a diagonal matrix?
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What is a diagonal matrix?What is a diagonal matrix? ...
by MathsGee Platinum
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asked in Mathematics Jul 24, 2021
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