MathsGee Homework Help Q&A - Recent questions tagged dot
https://mathsgee.com/tag/dot
Powered by Question2AnswerWhat is the dot (Euclidean inner) product of two vectors?
https://mathsgee.com/36637/what-is-the-dot-euclidean-inner-product-of-two-vectors
What is the dot (Euclidean inner) product of two vectors?Mathematicshttps://mathsgee.com/36637/what-is-the-dot-euclidean-inner-product-of-two-vectorsTue, 25 Jan 2022 23:49:30 +0000Knowing the dot product of two vectors, how can I establish the angle between them?
https://mathsgee.com/36635/knowing-the-dot-product-vectors-establish-angle-between-them
Knowing the dot product of two vectors, how can I establish the angle between them?Mathematicshttps://mathsgee.com/36635/knowing-the-dot-product-vectors-establish-angle-between-themTue, 25 Jan 2022 23:48:14 +0000Find the dot product of the vectors shown in the diagram below
https://mathsgee.com/36633/find-the-dot-product-of-the-vectors-shown-in-the-diagram-below
<p>Find the dot product of the vectors shown in the diagram below</p>
<p> </p>
<p><img alt="graph" src="https://mathsgee.com/?qa=blob&qa_blobid=1925024767083500666" style="height:202px; width:259px"></p>Mathematicshttps://mathsgee.com/36633/find-the-dot-product-of-the-vectors-shown-in-the-diagram-belowTue, 25 Jan 2022 23:46:18 +0000What is the component form of the dot product?
https://mathsgee.com/36631/what-is-the-component-form-of-the-dot-product
What is the component form of the dot product?Mathematicshttps://mathsgee.com/36631/what-is-the-component-form-of-the-dot-productTue, 25 Jan 2022 23:44:33 +0000Which mathematician came up with the dot product notation?
https://mathsgee.com/36629/which-mathematician-came-up-with-the-dot-product-notation
Which mathematician came up with the dot product notation?Mathematicshttps://mathsgee.com/36629/which-mathematician-came-up-with-the-dot-product-notationTue, 25 Jan 2022 23:43:21 +0000How do I calculate the dot product of two vectors?
https://mathsgee.com/36627/how-do-i-calculate-the-dot-product-of-two-vectors
How do I calculate the dot product of two vectors?Mathematicshttps://mathsgee.com/36627/how-do-i-calculate-the-dot-product-of-two-vectorsTue, 25 Jan 2022 23:42:12 +0000Calculate $\mathbf{u} \cdot \mathbf{v}$ for the following vectors in $R^{4}$ : $$ \mathbf{u}=(-1,3,5,7), \quad \mathbf{v}=(-3,-4,1,0) $$
https://mathsgee.com/36625/calculate-mathbf-cdot-mathbf-following-vectors-mathbf-mathbf
Calculate $\mathbf{u} \cdot \mathbf{v}$ for the following vectors in $R^{4}$ : $$ \mathbf{u}=(-1,3,5,7), \quad \mathbf{v}=(-3,-4,1,0) $$Mathematicshttps://mathsgee.com/36625/calculate-mathbf-cdot-mathbf-following-vectors-mathbf-mathbfTue, 25 Jan 2022 23:40:54 +0000Find the angle between a diagonal of a cube and one of its edges
https://mathsgee.com/36623/find-the-angle-between-a-diagonal-of-cube-and-one-of-its-edges
Find the angle between a diagonal of a cube and one of its edgesMathematicshttps://mathsgee.com/36623/find-the-angle-between-a-diagonal-of-cube-and-one-of-its-edgesTue, 25 Jan 2022 23:39:31 +0000What are the algebraic properties of the dot/inner product?
https://mathsgee.com/36621/what-are-the-algebraic-properties-of-the-dot-inner-product
What are the algebraic properties of the dot/inner product?Mathematicshttps://mathsgee.com/36621/what-are-the-algebraic-properties-of-the-dot-inner-productTue, 25 Jan 2022 23:38:21 +0000What is the dot product $(\mathbf{u}-2 \mathbf{v}) \cdot(3 \mathbf{u}+4 \mathbf{v})$
https://mathsgee.com/36617/what-is-the-dot-product-mathbf-u-2-mathbf-v-cdot-mathbf-mathbf
What is the dot product $(\mathbf{u}-2 \mathbf{v}) \cdot(3 \mathbf{u}+4 \mathbf{v})$Mathematicshttps://mathsgee.com/36617/what-is-the-dot-product-mathbf-u-2-mathbf-v-cdot-mathbf-mathbfTue, 25 Jan 2022 23:35:49 +0000If \(A\) and \(B\) are \(4 \times 4\) matrices such that \(\operatorname{rank}(A B)=3\), then \(\operatorname{rank}(B A)<4\).
https://mathsgee.com/36336/times-matrices-such-operatorname-rank-then-operatorname-rank
For each of the following, answer TRUE or FALSE. If the statement is false in even a single instance, then the answer is FALSE. There is no need to justify your answers to this problem - but you should know either a proof or a counterexample.<br />
<br />
a) If \(A\) and \(B\) are \(4 \times 4\) matrices such that \(\operatorname{rank}(A B)=3\), then \(\operatorname{rank}(B A)<4\).<br />
b) If \(A\) is a \(5 \times 3\) matrix with \(\operatorname{rank}(A)=2\), then for every vector \(b \in \mathbb{R}^{5}\) the equation \(A x=b\) will have at least one solution.<br />
c) If \(A\) is a \(4 \times 7\) matrix, then \(A\) and \(A^{T}\) have the same rank.<br />
d) Let \(A\) and \(B \neq 0\) be \(2 \times 2\) matrices. If \(A B=0\), then \(A\) must be the zero matrix.Mathematicshttps://mathsgee.com/36336/times-matrices-such-operatorname-rank-then-operatorname-rankFri, 21 Jan 2022 01:00:05 +0000What is the dot product of $\mathbf{u}$ a column matrix and $\mathbf{v}$ a column matrix?
https://mathsgee.com/35866/what-product-mathbf-column-matrix-and-mathbf-column-matrix
What is the dot product of $\mathbf{u}$ a column matrix and $\mathbf{v}$ a column matrix?Mathematicshttps://mathsgee.com/35866/what-product-mathbf-column-matrix-and-mathbf-column-matrixThu, 13 Jan 2022 09:24:26 +0000What is the dot product of u a row matrix and v a column matrix?
https://mathsgee.com/35864/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?Mathematicshttps://mathsgee.com/35864/what-is-the-dot-product-of-u-a-row-matrix-and-v-a-column-matrixThu, 13 Jan 2022 09:22:34 +0000What is the dot product of u a column matrix and v a row matrix?
https://mathsgee.com/35862/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?Mathematicshttps://mathsgee.com/35862/what-is-the-dot-product-of-u-a-column-matrix-and-v-a-row-matrixThu, 13 Jan 2022 09:21:00 +0000How do ISBN numbers apply dot products?
https://mathsgee.com/35860/how-do-isbn-numbers-apply-dot-products
<p>How do ISBN numbers apply dot products?</p>
<p> </p>
<p><img alt="dot product" src="https://mathsgee.com/?qa=blob&qa_blobid=5890046334045470884" style="height:130px; width:284px"></p>Mathematicshttps://mathsgee.com/35860/how-do-isbn-numbers-apply-dot-productsThu, 13 Jan 2022 09:19:03 +0000Can you do matrix multiplication using dot products?
https://mathsgee.com/35856/can-you-do-matrix-multiplication-using-dot-products
Can you do matrix multiplication using dot products?Mathematicshttps://mathsgee.com/35856/can-you-do-matrix-multiplication-using-dot-productsThu, 13 Jan 2022 09:15:47 +0000Let $\mathbf{u}$ be a vector in $R^{100}$ whose $i$ th component is $i$, and let $\mathbf{v}$ be the vector in $R^{100}$ whose $i$ th component is $1 /(i+1)$. Find the dot product of $\mathbf{u}$ and $\mathbf{v}$.
https://mathsgee.com/35845/mathbf-vector-component-vector-component-product-mathbf-mathbf
Let $\mathbf{u}$ be a vector in $R^{100}$ whose $i$ th component is $i$, and let $\mathbf{v}$ be the vector in $R^{100}$ whose $i$ th component is $1 /(i+1)$. Find the dot product of $\mathbf{u}$ and $\mathbf{v}$.Mathematicshttps://mathsgee.com/35845/mathbf-vector-component-vector-component-product-mathbf-mathbfThu, 13 Jan 2022 09:04:24 +0000What is the dot product of u a row matrix and v a row matrix?
https://mathsgee.com/35788/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?Mathematicshttps://mathsgee.com/35788/what-is-the-dot-product-of-u-a-row-matrix-and-v-a-row-matrixThu, 13 Jan 2022 08:05:31 +0000Let $a, b$ and $c$ be vectors in $\mathrm{R}^{3}, \times$ denotes the cross product, . the dot product. Which of the following is false?
https://mathsgee.com/35749/vectors-mathrm-times-denotes-product-product-which-following
Let $a, b$ and $c$ be vectors in $\mathrm{R}^{3}, \times$ denotes the cross product, . the dot product. Which of the following is false?<br />
<br />
A. $-a \times b=b \times a$<br />
<br />
B. $(a \times b) \cdot c=a \cdot(b \times c)$<br />
<br />
C. $a \cdot b=b \cdot a$<br />
<br />
D. $\boldsymbol{a} \times b=\|\boldsymbol{a}\| \boldsymbol{b} \| \sin a b$<br />
<br />
E. $\boldsymbol{a} \cdot b=\|\boldsymbol{a}\| \boldsymbol{b} \| \cos a b$Mathematicshttps://mathsgee.com/35749/vectors-mathrm-times-denotes-product-product-which-followingThu, 13 Jan 2022 07:02:17 +0000Let $a, b$ and $c$ be vectors in $\mathrm{R}^{3}$, such that $a \cdot(b \times c)=0$. Then
https://mathsgee.com/35748/let-a-and-c-be-vectors-in-mathrm-such-that-a-cdot-times-then
Let $a, b$ and $c$ be vectors in $\mathrm{R}^{3}$, such that $a \cdot(b \times c)=0$. Then<br />
<br />
A. $a, b$ and $c$ are colinear<br />
<br />
B. $a, b$ and $c$ lie on the coordinate axes<br />
<br />
C. $a, b$ and $c$ lie on the same plane<br />
<br />
D. at least one of the three vectors is the zero vector<br />
<br />
E. at least two of the three vectors are equalMathematicshttps://mathsgee.com/35748/let-a-and-c-be-vectors-in-mathrm-such-that-a-cdot-times-thenThu, 13 Jan 2022 06:59:02 +0000Let $\vec{a}$ and $\vec{b}$ be non-zero, non parallel vectors. Identify proj $\vec{a} \vec{b}$ geometrically in the diagram.
https://mathsgee.com/35744/zero-parallel-vectors-identify-proj-geometrically-diagram
<p>Let $\vec{a}$ and $\vec{b}$ be non-zero, non parallel vectors. Identify proj $\vec{a} \vec{b}$ geometrically in the diagram.</p>
<p><img alt="one" src="https://mathsgee.com/?qa=blob&qa_blobid=6348515559341164526" style="height:263px; width:600px"></p>
<p> </p>
<p> </p>
<p><img alt="two" src="https://mathsgee.com/?qa=blob&qa_blobid=9494786875031314913" style="height:285px; width:600px"></p>
<p><img alt="three" src="https://mathsgee.com/?qa=blob&qa_blobid=15850150531742412333" style="height:232px; width:370px"></p>Mathematicshttps://mathsgee.com/35744/zero-parallel-vectors-identify-proj-geometrically-diagramThu, 13 Jan 2022 06:49:52 +0000What is Object Dot Notation in javascript?
https://mathsgee.com/33854/what-is-object-dot-notation-in-javascript
What is Object Dot Notation in javascript?Computer Sciencehttps://mathsgee.com/33854/what-is-object-dot-notation-in-javascriptSat, 16 Oct 2021 04:32:07 +0000Work is equal to which of the following?
https://mathsgee.com/33270/work-is-equal-to-which-of-the-following
Work is equal to which of the following?<br />
<br />
w) the cross product of force and displacement.<br />
<br />
x) the product of force times time<br />
<br />
y) force divided by time<br />
<br />
z) the dot product of force and displacementPhysicshttps://mathsgee.com/33270/work-is-equal-to-which-of-the-followingTue, 05 Oct 2021 03:03:21 +0000What is the norm of $u=(1,-2,-4,5,3)$?
https://mathsgee.com/31444/what-is-the-norm-of-u-1-2-4-5-3
What is the norm of $u=(1,-2,-4,5,3)$?Mathematicshttps://mathsgee.com/31444/what-is-the-norm-of-u-1-2-4-5-3Mon, 09 Aug 2021 00:07:21 +0000What are the basic properties of the inner(dot) product?
https://mathsgee.com/31440/what-are-the-basic-properties-of-the-inner-dot-product
What are the basic properties of the inner(dot) product?Mathematicshttps://mathsgee.com/31440/what-are-the-basic-properties-of-the-inner-dot-productMon, 09 Aug 2021 00:02:53 +0000Find the negatives of (a) $u=(3,-5,-8,4)$, (b) $v=(-4,2 \pi, 0)$, (c) $0=(0,0,0,0)$.
https://mathsgee.com/31407/find-the-negatives-of-a-u-3-5-8-4-b-v-4-2-pi-0-c-0-0-0-0-0
Find the negatives of<br />
<br />
(a) $u=(3,-5,-8,4)$,<br />
(b) $v=(-4,2 \pi, 0)$,<br />
(c) $0=(0,0,0,0)$.Mathematicshttps://mathsgee.com/31407/find-the-negatives-of-a-u-3-5-8-4-b-v-4-2-pi-0-c-0-0-0-0-0Sun, 08 Aug 2021 23:08:41 +0000In a dot and cross diagram, what does each dot and cross represent?
https://mathsgee.com/30317/dot-and-cross-diagram-what-does-each-dot-and-cross-represent
In a dot and cross diagram, what does each dot and cross represent?Chemistryhttps://mathsgee.com/30317/dot-and-cross-diagram-what-does-each-dot-and-cross-representSun, 27 Jun 2021 00:29:40 +0000What is the dot plot of the dataset $A = \{5,5.5,6,6,6,6.5,6.5,6.5,6.5,7,7,8,8,9\}$?
https://mathsgee.com/27322/what-is-the-dot-plot-of-the-dataset-a-5-5-5-6-6-6-6-5-6-5-6-5-6-5-7-7-8-8-9
What is the dot plot of the dataset $A = \{5,5.5,6,6,6,6.5,6.5,6.5,6.5,7,7,8,8,9\}$?Data Science & Statisticshttps://mathsgee.com/27322/what-is-the-dot-plot-of-the-dataset-a-5-5-5-6-6-6-6-5-6-5-6-5-6-5-7-7-8-8-9Thu, 06 May 2021 15:50:09 +0000Find the projection of $u = <3,-12>$ onto $v = <9,2>$
https://mathsgee.com/26239/find-the-projection-of-u-3-12-onto-v-9-2
Find the projection of $u = <3,-12>$ onto $v = <9,2>$Mathematicshttps://mathsgee.com/26239/find-the-projection-of-u-3-12-onto-v-9-2Mon, 12 Apr 2021 14:24:04 +0000Find the dot product of $u = <-5,-6,-2>$ and $v = <-3,10,8>$. Are $u$ and $v$ orthogonal?
https://mathsgee.com/26238/find-the-dot-product-of-u-and-v-10-are-u-and-v-orthogonal
Find the dot product of $u = <-5,-6,-2>$ and $v = <-3,10,8>$. Are $u$ and $v$ orthogonal?Mathematicshttps://mathsgee.com/26238/find-the-dot-product-of-u-and-v-10-are-u-and-v-orthogonalMon, 12 Apr 2021 14:23:14 +0000What is a cross product in physics?
https://mathsgee.com/25770/what-is-a-cross-product-in-physics
What is a cross product in physics?Physicshttps://mathsgee.com/25770/what-is-a-cross-product-in-physicsMon, 29 Mar 2021 01:13:58 +0000What is a dot product in physics?
https://mathsgee.com/25768/what-is-a-dot-product-in-physics
What is a dot product in physics?Physicshttps://mathsgee.com/25768/what-is-a-dot-product-in-physicsMon, 29 Mar 2021 01:12:24 +0000