By applying the definition of product between two <em>square</em> matrices, we find that ![\vec A \,\cdot \,\vec A = \left[\begin{array}{cc}1&2\\3&6\end{array}\right] \cdot \left[\begin{array}{cc}1&2\\3&6\end{array}\right]](https://tex.z-dn.net/?f=%5Cvec%20A%20%5C%2C%5Ccdot%20%5C%2C%5Cvec%20A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D1%262%5C%5C3%266%5Cend%7Barray%7D%5Cright%5D%20%5Ccdot%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D1%262%5C%5C3%266%5Cend%7Barray%7D%5Cright%5D)
is equal to the matrix ![\vec A \,\cdot \,\vec A = \left[\begin{array}{cc}7&14\\21&42\end{array}\right]](https://tex.z-dn.net/?f=%5Cvec%20A%20%5C%2C%5Ccdot%20%5C%2C%5Cvec%20A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D7%2614%5C%5C21%2642%5Cend%7Barray%7D%5Cright%5D)
. (Correct choice: D)
<h3>What is the product of two square matrices</h3>
In this question we must use the definition of product between two <em>square</em> matrices to determine the resulting construction:
By applying the definition of product between two <em>square</em> matrices, we find that is equal to the matrix .
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Answer:
pq
Step-by-step explanation:
Answer:
Y=3
Step-by-step explanation:
-1= 1/2
1/2=-1
x=-1
y=3
Hope this helps!
Answer:
Step-by-step explanation:
4/5
1/2
Answer:
m=9
Step-by-step explanation:
It's very simple.
First, you have to subtract 8 to both sides.
7m+8=71
-8 -8
Then, once you've subtracted, your left with 7m= 63. Now you have to divide to both sides.
<u>7m</u>= <u>63</u>
7 7
In conclusion, once you've divided, you are left with your answer.
m=9
