# Recent questions tagged cross

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What is cross-sectional data?
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What is cross-sectional data?What is cross-sectional data? ...
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If $A$ and $B$ are $4 \times 4$ matrices such that $\operatorname{rank}(A B)=3$, then $\operatorname{rank}(B A)<4$.
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If $A$ and $B$ are $4 \times 4$ matrices such that $\operatorname{rank}(A B)=3$, then $\operatorname{rank}(B A)<4$.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 ju ...
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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?
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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?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? A. $-a \time ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Let$a, b$and$c$be vectors in$\mathrm{R}^{3}$, such that$a \cdot(b \times c)=0$. Then 0 answers 11 views Let$a, b$and$c$be vectors in$\mathrm{R}^{3}$, such that$a \cdot(b \times c)=0$. ThenLet$a, b$and$c$be vectors in$\mathrm{R}^{3}$, such that$a \cdot(b \times c)=0$. Then A.$a, b$and$c$are colinear B.$a, b$and$c$lie on t ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Let$\vec{a}$and$\vec{b}$be non-zero, non parallel vectors. Identify proj$\vec{a} \vec{b}$geometrically in the diagram. 0 answers 7 views Let$\vec{a}$and$\vec{b}$be non-zero, non parallel vectors. Identify proj$\vec{a} \vec{b}$geometrically in the diagram. Let$\vec{a}$and$\vec{b}$be non-zero, non parallel vectors. Identify proj$\vec{a} \vec{b}$geometrically in the diagram. &nbsp; &nbsp; ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Differentiate cross sectional research from time series research. 0 answers 23 views Differentiate cross sectional research from time series research.Differentiate cross sectional research from time series research. ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Work is equal to which of the following? 1 answer 34 views Work is equal to which of the following?Work is equal to which of the following? w) the cross product of force and displacement. x) the product of force times time y) force divided by tim ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 Find the negatives of (a)$u=(3,-5,-8,4)$, (b)$v=(-4,2 \pi, 0)$, (c)$0=(0,0,0,0)$. 1 answer 49 views 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 (a)$u=(3,-5,-8,4)$, (b)$v=(-4,2 \pi, 0)$, (c)$0=(0,0,0,0)$. ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 In a dot and cross diagram, what does each dot and cross represent? 0 answers 92 views In a dot and cross diagram, what does each dot and cross represent?In a dot and cross diagram, what does each dot and cross represent? ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 What is the determinant of the product of matrices 1 answer 67 views What is the determinant of the product of matricesWhat is the determinant of the product of matrices$A=\left\begin{array}{ccc}2 &amp; 3 &amp; -1 \\ 0 &amp; 1 &amp; 2\end{array}\right$and$B=\left ...
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Find the projection of $u = <3,-12>$ onto $v = <9,2>$
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Find the projection of $u = <3,-12>$ onto $v = <9,2>$Find the projection of $u = &lt;3,-12&gt;$ onto $v = &lt;9,2&gt;$ ...
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Find the dot product of $u = <-5,-6,-2>$ and $v = <-3,10,8>$. Are $u$ and $v$ orthogonal?
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Find the dot product of $u = <-5,-6,-2>$ and $v = <-3,10,8>$. Are $u$ and $v$ orthogonal?Find the dot product of $u = &lt;-5,-6,-2&gt;$ and $v = &lt;-3,10,8&gt;$. Are $u$ and $v$ orthogonal? ...
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What is the relationship between area and determinant of the cross product?
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What is the relationship between area and determinant of the cross product?What is the relationship between area and determinant of the cross product? ...
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What is a cross product in physics?
1 answer 114 views
What is a cross product in physics?What is a cross product in physics? ...
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If you calculate the cross products AxB and BxA, how will the results compare?
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If you calculate the cross products AxB and BxA, how will the results compare?If you calculate the cross products AxB and BxA, how will the results compare? ...
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When you complete a cross product between two vectors, what is the nature of the result you get?
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When you complete a cross product between two vectors, what is the nature of the result you get?When you complete a cross product between two vectors, what is the nature of the result you get? ...
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The diagram shows a cross section of an anther. Which labelled part A, B, C or D contains haploid cells?
1 answer 364 views
The diagram shows a cross section of an anther. Which labelled part A, B, C or D contains haploid cells? The diagram shows a cross section of an anther. Which labelled part A, B, C or D contains haploid cells? ...
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The diagram shows the cross section of an artery. Which part A, B, C or D allows the artery to stretch without bursting?
1 answer 208 views
The diagram shows the cross section of an artery. Which part A, B, C or D allows the artery to stretch without bursting? The diagram shows the cross section of an artery. Which part A, B, C or D allows the artery to stretch without bursting? &nbsp; ...
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When I cross a donkey and a horse, a mule is produced that is sterile. What type of reproductive barrier does this represent?
1 answer 151 views
When I cross a donkey and a horse, a mule is produced that is sterile. What type of reproductive barrier does this represent?When I cross a donkey and a horse, a mule is produced that is sterile. What type of reproductive barrier does this represent? ...
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What is a dihybrid cross?
1 answer 64 views
What is a dihybrid cross?What is a dihybrid cross? ...
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What is a monohybrid cross?
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What is a monohybrid cross?What is a monohybrid cross? ...
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Use a genetic cross to show the possible genotypes and phenotypes of their children
1 answer 210 views
Use a genetic cross to show the possible genotypes and phenotypes of their childrenColour blindness (Daltonism) is a sex-linked disorder caused by a recessive allele (Xd ). A woman who is heterozygous for normal vision married a man ...
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Explain (without using a genetic cross) why all their sons will be haemophiliacs.
1 answer 77 views
Explain (without using a genetic cross) why all their sons will be haemophiliacs.Haemophilia is a genetic disorder caused by a recessive allele on the X chromosome. A haemophiliac female marries a normal male. Explain (without usin ...
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Use a genetic cross to show why all their sons will be haemophiliacs.
1 answer 96 views
Use a genetic cross to show why all their sons will be haemophiliacs.Haemophilia is a genetic disorder caused by a recessive allele on the X chromosome. A haemophiliac female marries a normal male. Use a genetic cross t ...
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Draw a cross (x) on the 3-D object that can roll.
1 answer 149 views
Draw a cross (x) on the 3-D object that can roll. Draw a cross (x) on the 3-D object that can roll.&nbsp; ...
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