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Show that the matrix $M$ and $M^{T}$ have the same singular values.
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Show that the matrix $M$ and $M^{T}$ have the same singular values.Show that the matrix $M$ and $M^{T}$ have the same singular values. ...
by MathsGee Platinum
(102,806 points)
asked in Mathematics Jul 24, 2021
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$5(z+1)=3(z+2)+11$ Solve for $z$
1 answer 66 views
$5(z+1)=3(z+2)+11$ Solve for $z$$5(z+1)=3(z+2)+11$ Solve for $z$ ...
by MathsGee Platinum
(102,806 points)
asked in Mathematics Jul 22, 2021
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Solve the equation $3n+2=17$
1 answer 66 views
Solve the equation $3n+2=17$Solve the equation $3n+2=17$ ...
by MathsGee Platinum
(102,806 points)
asked in Mathematics Jul 1, 2021
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Solve the simultaneous equations: $\frac{2}{\sqrt{x}}+\frac{3}{\sqrt{y}}=2$ and $\frac{4}{\sqrt{x}}-\frac{9}{\sqrt{y}}=-1$
1 answer 60 views
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Solve $3(x-5)=15$
1 answer 54 views
Solve $3(x-5)=15$Solve $3(x-5)=15$ ...
by Maths Genie Bronze Status
(5,290 points)
asked in Mathematics Jun 17, 2021
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Solve the simultaneous equation $4.9 x+1.5 y=38.3$ and $2.7 x-8.6 y=17.8$
1 answer 48 views
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Solve the simultaneous equations $3x+y=8$ and $x+2 y=6$
1 answer 83 views
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Solve for $x$: $3.5^{x}=0,6$
1 answer 36 views
Solve for $x$: $3.5^{x}=0,6$Solve for $x$: $3.5^{x}=0,6$ ...
by Student SIlver Status
(10,386 points)
asked in Mathematics Jun 14, 2021
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Solve the simultaneous equations: $3 x-y+z=5$; $2 x+2 y+3 z=4$ and $x+3 y-z=11$
1 answer 59 views
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Given the following simultaneous equations: $x+3 y=-1$ and $-3 x+6 y=8$, solve the given simultaneous equations by the substitution method.

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Given the simultaneous equations $7 x-3 y=41$ and $3 x-y=17$, solve for $x$ and $y$ by matrix method.
1 answer 57 views
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Determine the VanderMonde matrix for the points $\left[0, \frac{1}{9}, \frac{2}{9}, \ldots, 1\right]$.
0 answers 35 views
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If the eigenvalues of $\mathbf{A}$ are $100,-50,3 \pm 5 \sqrt{-1}$, then find a lower bound on cond $(\mathbf{A})$ 
1 answer 54 views
If the eigenvalues of $\mathbf{A}$ are $100,-50,3 \pm 5 \sqrt{-1}$, then find a lower bound on cond $(\mathbf{A})$ Given a nonsingular $n \times n$ matrix $\mathbf{A}$, and $n \times 1$ vectors $\mathbf{x}, \hat{\mathbf{x}}, \mathbf{b}=\mathbf{A x}$, and $\hat{\mat ...
by MathsGee Platinum
(102,806 points)
asked in Mathematics May 9, 2021
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Find a better bound for $$ \frac{\|\mathbf{x}-\hat{\mathbf{x}}\|}{\|\mathbf{x}\|} \times \frac{\|\mathbf{b}\|}{\|\mathbf{b}-\hat{\mathbf{b}}\|} $$

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A symmetric matrix A is positive semi-definite if
1 answer 110 views
A symmetric matrix A is positive semi-definite ifA symmetric matrix A is positive semi-definite if ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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A matrix $\mathbf{A} \in \mathbb{R}^{n \times n}$ is said to be symmetric if
1 answer 75 views
A matrix $\mathbf{A} \in \mathbb{R}^{n \times n}$ is said to be symmetric ifA matrix $\mathbf{A} \in \mathbb{R}^{n \times n}$ is said to be symmetric if ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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A matrix $\mathbf{Q} \in \mathbb{R}^{n \times n}$ is said to be orthogonal if
1 answer 64 views
A matrix $\mathbf{Q} \in \mathbb{R}^{n \times n}$ is said to be orthogonal ifA matrix $\mathbf{Q} \in \mathbb{R}^{n \times n}$ is said to be orthogonal if ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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The determinant of a square matrix can be defined as ...
1 answer 74 views
The determinant of a square matrix can be defined as ...The determinant of a square matrix can be defined as ... ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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The trace of a square matrix is ...
1 answer 142 views
The trace of a square matrix is ...The trace of a square matrix is ... ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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We say that a nonzero vector $\mathrm{x} \in \mathbb{R}^{n}$ is an eigenvector of A corresponding to eigenvalue $\lambda$ if
1 answer 72 views
We say that a nonzero vector $\mathrm{x} \in \mathbb{R}^{n}$ is an eigenvector of A corresponding to eigenvalue $\lambda$ ifFor a square matrix $\mathbf{A} \in \mathbb{R}^{n \times n}$, there may be vectors which, when $\mathbf{A}$ is applied to them, are simply scaled by s ...
by Pieter SIlver Status
(17,435 points)
asked in Mathematics May 8, 2021
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Find values of $x$ for which $A B$ is a singular matrix.
1 answer 72 views
Find values of $x$ for which $A B$ is a singular matrix.(a) Given that $A=$ $$ \left(\begin{array}{cc} 3 & x \\ x+1 & 2 \end{array}\right) $$ and $B=$ $$ \left(\begin{array}{ll} 1 & 2 \\ 3 & ...
by MathsGee Platinum
(102,806 points)
asked in Mathematics May 8, 2021
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I am confused. Why is a confusion matrix called a "Confusion Matrix"?
1 answer 177 views
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I am confused. Why is a confusion matrix called a "Confusion Matrix"? I am confused. Why is a confusion matrix called a "Confusion Matrix"?     ...
by MathsGee Platinum
(102,806 points)
asked in Data Science & Statistics Nov 6, 2020
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