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What is the dot product of $\mathbf{u}$ a column matrix and $\mathbf{v}$ a column matrix?
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What is the dot product of $\mathbf{u}$ a column matrix and $\mathbf{v}$ a column matrix?What is the dot product of $\mathbf{u}$ a column matrix and $\mathbf{v}$ a column matrix? ...
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What is the dot product of u a row matrix and v a column matrix?
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What is the dot product of u a row matrix and v a column matrix?What is the dot product of u a row matrix and v a column matrix? ...
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asked in Mathematics Jan 13
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What is the dot product of u a column matrix and v a row matrix?
1 answer 9 views
What is the dot product of u a column matrix and v a row matrix?What is the dot product of u a column matrix and v a row matrix? ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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Can you do matrix multiplication using dot products?
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Can you do matrix multiplication using dot products?Can you do matrix multiplication using dot products? ...
by MathsGee Platinum
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What is the dot product of u a row matrix and v a row matrix?
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What is the dot product of u a row matrix and v a row matrix?What is the dot product of u a row matrix and v a row matrix? ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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Let $A$ and $B$ be $n \times n$ matrices. Which of the following is true?
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Let $A$ and $B$ be $n \times n$ matrices. Which of the following is true?Let $A$ and $B$ be $n \times n$ matrices. Which of the following is true?   A) $\operatorname{det}(A)=\operatorname{det}(-A)$ B) $\operatornam ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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Which of the following operations does not change the determinant?
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Which of the following operations does not change the determinant?Which of the following operations does not change the determinant?   A) interchanging two rows B) multiplying a row by a constant C) adding t ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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If $\underline{a}=(2,1,-1)$ and $\underline{b}=(-1,2,1)$, then $2 \underline{a}-3 \underline{b}$ is equal to
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If $\underline{a}=(2,1,-1)$ and $\underline{b}=(-1,2,1)$, then $2 \underline{a}-3 \underline{b}$ is equal toIf $\underline{a}=(2,1,-1)$ and $\underline{b}=(-1,2,1)$, then $2 \underline{a}-3 \underline{b}$ is equal to   A) $(1,-4,-5)$ B) $(7,-4,5)$ C ...
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Find the inverse of the matrix $$ A=\left(\begin{array}{lll} 4 & 3 & 4 \\ 5 & 4 & 6 \\ 4 & 3 & 3 \end{array}\right) $$
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Find the inverse of the matrix $$ A=\left(\begin{array}{lll} 4 & 3 & 4 \\ 5 & 4 & 6 \\ 4 & 3 & 3 \end{array}\right) $$Find the inverse of the matrix $$ A=\left(\begin{array}{lll} 4 & 3 & 4 \\ 5 & 4 & 6 \\ 4 & 3 & 3 \end{array}\right) $$ ...
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Calculate the determinant $$ \left|\begin{array}{rrrr} 4 & 2 & 3 & 4 \\ 1 & 0 & 1 & 2 \\ 1 & -1 & 1 & 0 \\ 5 & 1 & 4 & 3 \end{array}\right| $$

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Which of the following is the coefficient matrix for the system  \begin{array}{c} x+4 y=6 \\ 4 x+2 y=z \text { ? } \\ y+5 z=-6 \end{array}
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The augmented matrix of a system $A X=B$ has been transformed using elementary row operations to ...
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The augmented matrix of a system $A X=B$ has been transformed using elementary row operations to ... \begin{equation} \begin{aligned} &\text { The augmented matrix of a system } A X=B \text { has been transformed using elementary row }\\ &amp ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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What is the product of $A$, $B$ and $C$?
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What is the product of $A$, $B$ and $C$?\begin{equation} \text { Given } A=\left\begin{array}{ll} 4 & 5 \end{array}\right, B=\left\begin{array}{llll} 1 & 1 & 2 & 1 \end{ar ...
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Let $A$ be an $n \times n$ matrix with $I_{n}$ the identity matrix. The statement det $A \neq 0$ is equivalent to:
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Let $A$ be an $n \times n$ matrix with $I_{n}$ the identity matrix. The statement det $A \neq 0$ is equivalent to:Let $A$ be an $n \times n$ matrix with $I_{n}$ the identity matrix. The statement det $A \neq 0$ is equivalent to:   A. All the given options a ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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Which of the following is the equation of the plane through the points $(3,-2,5),(1,4,-1),(2,-6,7) ?$
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Which of the following is the equation of the plane through the points $(3,-2,5),(1,4,-1),(2,-6,7) ?$Which of the following is the equation of the plane through the points $(3,-2,5),(1,4,-1),(2,-6,7) ?$ \begin{equation} \text { A. }\left|\begin{array} ...
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Let $A$ and $B$ be two square invertible matrices of the same order. Then $\left((A B)^{T}\right)^{-1}$ is equal to
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Let $A$ and $B$ be two square invertible matrices of the same order. Then $\left((A B)^{T}\right)^{-1}$ is equal toLet $A$ and $B$ be two square invertible matrices of the same order. Then $\left((A B)^{T}\right)^{-1}$ is equal to   A) $\left(B^{T}\right)^{- ...
by MathsGee Platinum
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asked in Mathematics Jan 13
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Which of the following operations does not change the determinant?
0 answers 10 views
Which of the following operations does not change the determinant?Which of the following operations does not change the determinant?   A) interchanging two rows B) multiplying a row by a constant C) adding t ...
by MathsGee Platinum
(103,030 points)
asked in Mathematics Jan 13
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