Invers matriks.
jika A= 2x 5 dan B= 5 4
9 x+3 13 3x
tentukanlah x jika [a]=[b]
jika A= 2x 5 dan B= 5 4
9 x+3 13 3x
tentukanlah x jika [a]=[b]
xkuadratz
![A=\left[\begin{array}{ccc}2x&5\\9&x+3\end{array}\right] \\ B=\left[\begin{array}{ccc}5&4\\13&3x\end{array}\right] \\ |A|=|B| \\ 2x(x+3)-45 = 15x-52 \\ 2x^2+6x-45-15x+52=0 \\ 2x^2-9x+7=0 \\ (2x-7)(x-1)=0 \\ x= \frac{7}{2}\ atau \ x=1](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2x%265%5C%5C9%26x%2B3%5Cend%7Barray%7D%5Cright%5D+%5C%5C+B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D5%264%5C%5C13%263x%5Cend%7Barray%7D%5Cright%5D+%5C%5C+%7CA%7C%3D%7CB%7C+%5C%5C+2x%28x%2B3%29-45+%3D+15x-52+%5C%5C+2x%5E2%2B6x-45-15x%2B52%3D0+%5C%5C+2x%5E2-9x%2B7%3D0+%5C%5C+%282x-7%29%28x-1%29%3D0+%5C%5C+x%3D+%5Cfrac%7B7%7D%7B2%7D%5C+atau+%5C+x%3D1+ "A=\left[\begin{array}{ccc}2x&5\\9&x+3\end{array}\right] \\ B=\left[\begin{array}{ccc}5&4\\13&3x\end{array}\right] \\ |A|=|B| \\ 2x(x+3)-45 = 15x-52 \\ 2x^2+6x-45-15x+52=0 \\ 2x^2-9x+7=0 \\ (2x-7)(x-1)=0 \\ x= \frac{7}{2}\ atau \ x=1")
1 votes
Thanks 1
More Questions From This User See All