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matrix multiplication

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.
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. [1112]2\begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^2
2. [1112]3\begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^3
(edited 8 years ago)
Reply 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.


Unparseable latex formula:

\text{If} \: \textbf{M}=\left( \begin{array}{cc} 1 & 1 \\ 1 & 2\end{array} \right) \\[br][br]\text{Then} \textbf{M}^2=?, \: \textbf{M}^3=?[br]



Is an okay of writing it in LaTeX\LaTeX.

As for the question, what have you done so far?
Reply 3
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. [1112]2\begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^2
2. [1112]3\begin{bmatrix} 1 & 1 \\1 & 2 \end{bmatrix}^3



yes thats the question please help me with the answer thanks
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?
Reply 5
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
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!
Reply 7
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
Reply 8
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 :smile:
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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