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OpenStudy (bahrom7893):
with what?
OpenStudy (anonymous):
x an y are 2 matrices x=(-2 0 5 1) an y=(4 3 -1 7) evulate x square+y
OpenStudy (bahrom7893):
okay.. hold on..
OpenStudy (anonymous):
ok
OpenStudy (bahrom7893):
\[\left[\begin{matrix}-2 & 0 \\ 5 & 1\end{matrix}\right]*\left[\begin{matrix}-2 & 0 \\ 5 & 1\end{matrix}\right]+\left[\begin{matrix}4 & 3 \\ -1 & 7\end{matrix}\right]\]
is that what you want?
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OpenStudy (anonymous):
yea that is what is it
OpenStudy (bahrom7893):
okay first do matrix multiplication row times column basically:
[ (-2)*(-2) + 0*5 (-2*0)+0*1]
[ 5*(-2)+1*5 5*0+1*1 ]
OpenStudy (anonymous):
ok
OpenStudy (bahrom7893):
The left matrix becomes:
[ 4 0]
[-5 1]
OpenStudy (bahrom7893):
now find the sum, just add up the corresponding entries:
\[\left[\begin{matrix}4 & 0 \\ -5 & 1\end{matrix}\right]+\left[\begin{matrix}4 & 3 \\ -1 & 7\end{matrix}\right]\]
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OpenStudy (bahrom7893):
[ 8 3 ]
[ -6 8 ]
OpenStudy (anonymous):
ok thank you so much
OpenStudy (bahrom7893):
Please click on Good Answer if I helped, I want to get to the next level, thanks =)!
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
u welcome:::::P
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