OlmekinjP
2021-02-25
Answered

Consider the following two matrices. Why cant

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SabadisO

Answered 2021-02-26
Author has **108** answers

Step 1

We explain why matrix product is not possible.

Step 2

If A is a matrix of order

The matrix product AB is possible if

n=p

Here A is a matrix of order

B is a matrix of order

Here m=2,n=3,p=2,q=2

Here

Since

Jeffrey Jordon

Answered 2022-01-27
Author has **2313** answers

Answer is given below (on video)

asked 2021-01-31

Find a basis for the space of $2\times 2$ diagonal matrices.

$\text{Basis}=\{\left[\begin{array}{cc}& \\ & \end{array}\right],\left[\begin{array}{cc}& \\ & \end{array}\right]\}$

asked 2021-02-08

Let B be a 4x4 matrix to which we apply the following operations:

1. double column 1,

2. halve row 3,

3. add row 3 to row 1,

4. interchange columns 1 and 4,

5. subtract row 2 from each of the other rows,

6. replace column 4 by column 3,

7. delete column 1 (column dimension is reduced by 1).

(a) Write the result as a product of eight matrices.

(b) Write it again as a product of ABC (same B) of three matrices.

1. double column 1,

2. halve row 3,

3. add row 3 to row 1,

4. interchange columns 1 and 4,

5. subtract row 2 from each of the other rows,

6. replace column 4 by column 3,

7. delete column 1 (column dimension is reduced by 1).

(a) Write the result as a product of eight matrices.

(b) Write it again as a product of ABC (same B) of three matrices.

asked 2022-04-05

y=x^-5

asked 2022-03-23

Why solving trigonometry equation for $x{y}^{\prime}=y\mathrm{cos}\mathrm{ln}\frac{y}{x}$

asked 2022-07-20

Is the following polynomial positive:

${T}_{k}(t)={\left(\frac{t}{2}\right)}^{p}\sum _{j=0}^{k}\frac{{(-\frac{{t}^{2}}{4})}^{j}\mathrm{\Gamma}(p+1)}{j!\mathrm{\Gamma}(p+j+1)}.$

${T}_{k}(t)={\left(\frac{t}{2}\right)}^{p}\sum _{j=0}^{k}\frac{{(-\frac{{t}^{2}}{4})}^{j}\mathrm{\Gamma}(p+1)}{j!\mathrm{\Gamma}(p+j+1)}.$

asked 2022-03-01

Let $p={\mathrm{sin}24}^{\circ}$

1. Then what would$\mathrm{cos}\left({24}^{\circ}\right)$ be in terms of p?

2. What would$\mathrm{sin}\left({168}^{\circ}\right)\cdot \mathrm{sin}(-{78}^{\circ})$ be in terms of p?

1. Then what would

2. What would

asked 2021-03-11

Use cramer's rule to determine the values of ${I}_{1},{I}_{2},{I}_{3}$ and ${I}_{4}$

$\left[\begin{array}{cccc}13.7& -4.7& -2.2& 0\\ -4.7& 15.4& 0& -8.2\\ -2.2& 0& 25.4& -22\\ 0& -8.2& -22& 31.3\end{array}\right]\left[\begin{array}{c}{I}_{1}\\ {I}_{2}\\ {I}_{3}\\ {I}_{4}\end{array}\right]=\left[\begin{array}{c}6\\ -6\\ 5\\ -9\end{array}\right]$