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matrix multiplication

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nityaaditya
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#1
Report Thread starter 6 years ago
#1
if M = 1 1 matrix
1 2
then what would be matrix
1.M square
2. M cube

please help me in this math problem i have the matrix is in column matrix
i could not put the brackets on sorry.
please help me.
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Plagioclase
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#2
Report 6 years ago
#2
(Original post by nityaaditya)
if M = 1 1 matrix
1 2
then what would be matrix
1.M square
2. M cube

please help me in this math problem i have the matrix is in column matrix
i could not put the brackets on sorry.
please help me.
I think I get what you're asking. Have you learned how to do matrix multiplication yet?

Do I understand correctly that this is the question:

1. \begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^2
2. \begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^3
1
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alow
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#3
Report 6 years ago
#3
(Original post by nityaaditya)
if M = 1 1 matrix
1 2
then what would be matrix
1.M square
2. M cube

please help me in this math problem i have the matrix is in column matrix
i could not put the brackets on sorry.
please help me.
\text{If} \: \textbf{M}=\left( \begin{array}{cc} 1 & 1 \\ 1 & 2\end{array} \right) \\ \text{Then} \textbf{M}^2=?, \: \textbf{M}^3=?

Is an okay of writing it in \LaTeX.

As for the question, what have you done so far?
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nityaaditya
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#4
Report Thread starter 6 years ago
#4
(Original post by Plagioclase)
I think I get what you're asking. Have you learned how to do matrix multiplication yet?

Do I understand correctly that this is the question:

1. \begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^2
2. \begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^3

yes thats the question please help me with the answer thanks
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Plagioclase
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#5
Report 6 years ago
#5
(Original post by nityaaditya)
yes thats the question please help me with the answer thanks
We can't give you worked solutions, what have you done so far? Have you learned the method of matrix multiplication?
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nityaaditya
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#6
Report Thread starter 6 years ago
#6
(Original post by Plagioclase)
We can't give you worked solutions, what have you done so far? Have you learned the method of matrix multiplication?
no thats i asked asked u for the answer we got it in an math quiz and i dint know the answer i thought i would get the answer from here because i wanted to know what is this matrix multiplication and i wanted to know what the answer was so i asked it here
please give me the answer please
thank you
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Plagioclase
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#7
Report 6 years ago
#7
(Original post by nityaaditya)
no thats i asked asked u for the answer we got it in an math quiz and i dint know the answer i thought i would get the answer from here because i wanted to know what is this matrix multiplication and i wanted to know what the answer was so i asked it here
please give me the answer please
thank you
No I can't give you an answer because it's not going to help you if you still don't know how to work it out!
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nityaaditya
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#8
Report Thread starter 6 years ago
#8
(Original post by Plagioclase)
No I can't give you an answer because it's not going to help you if you still don't know how to work it out!
why not please
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davros
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#9
Report 6 years ago
#9
(Original post by nityaaditya)
why not please
It's against the rules of the forum to provide solutions.

To be honest, the correct way to approach questions like this is to learn the technique first and then have a go at the question!

If you google 'matrix multiplication' you will find any number of tutorials that will show you how to multiply matrices, and then you can have a go at the question yourself. If you still get stuck, post back here with your working and someone will help you
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Plagioclase
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#10
Report 6 years ago
#10
(Original post by nityaaditya)
why not please
Because TSR isn't here to do someone's homework for them, it's here to actually help people. If you're willing to show us what you've tried then we can help you but telling you the answer won't help you. If you desperately want an answer then I'm sure there are websites that multiply matrices for you.
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