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xxxtechmanxxx

  • 3 years ago

MATRIX QUESTION

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  1. eliassaab
    • 3 years ago
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    *

  2. xxxtechmanxxx
    • 3 years ago
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    \[A = \left[\begin{matrix}a & b \\ c & 0\end{matrix}\right] and B = \left[\begin{matrix}1 & 0 \\ d & e\end{matrix}\right]. \]

  3. xxxtechmanxxx
    • 3 years ago
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    Giving your answer is terms of a,b,c,d, and e, a)Write down A+B b)Find AB

  4. xxxtechmanxxx
    • 3 years ago
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    Help?

  5. eliassaab
    • 3 years ago
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    for A+B add the corresponding elements of A and B

  6. seidi.yamauti
    • 3 years ago
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    a11=a+1 a12=b+0=0 ...

  7. eliassaab
    • 3 years ago
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    \[ A+B=\left( \begin{array}{cc} a+1 & b \\ c+d & e \end{array} \right) \]

  8. eliassaab
    • 3 years ago
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    \[ A B=\left( \begin{array}{cc} a+b d & b e \\ c & 0 \end{array} \right) \]

  9. xxxtechmanxxx
    • 3 years ago
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    Alright, but how do I do that? I'm a bit new to Matrices.

  10. eliassaab
    • 3 years ago
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    \[ A = \left[\begin{matrix}a & b \\ c & 0\end{matrix}\right] \text { and } B = \left[\begin{matrix}1 & 0 \\ d & e\end{matrix}\right]\\ c_{1,1}= a (1) + b(d)=a + bd\\ c_{1,2}= a (0) + b(e)=be\\ c_{2,1}= c(1) +0(d)=c\\ c_{2,2}= c(0) +0(e)=0\\ \]

  11. eliassaab
    • 3 years ago
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    Did you understand?

  12. xxxtechmanxxx
    • 3 years ago
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    Yes! Thank you!

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