$x,y$ ની જે કિંમતો માટે શ્રેણિક જોડ $\left[\begin{array}{cc}3 x+7 & 5 \\ y+1 & 2-3 x\end{array}\right]=\left[\begin{array}{cc}0 & y-2 \\ 8 & 4\end{array}\right]$ સમાન થાય તેવી આપેલી $x $ અને $y$ ની કિંમત $............$
A$x=\frac{-1}{3}$, $y=7$
B$x=\frac{-1}{3}$, $y=\frac{-2}{3}$
C$y=7$, $x=\frac{-2}{3}$
D
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C$y=7$, $x=\frac{-2}{3}$
It is given that $\left[\begin{array}{cc}3 x+7 & 5 \\ y+1 & 2-3 x\end{array}\right]=\left[\begin{array}{cc}0 & y-2 \\ 8 & 4\end{array}\right]$
Equating the corresponding elements, we get :
$3 x+7=0 $
$\Rightarrow x=-\frac{7}{3}$
$5=y-2 $
$\Rightarrow y=7$
$y+1=8 $
$\Rightarrow y=7$
$2-3 x=4$
$ \Rightarrow x=-\frac{2}{3}$
We find that on comparing the corresponding elements of the two matrices,
we get two different values of $x$, which is not possible.
Hence, it is not possible to find the values of $\mathrm{x}$ and $\mathrm{y}$ for which the given matrices are equal.
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સુરેખ સમીકરણ સંહતિ $x + y + z = 1;x + ay + z = 1; ax + by + z = 0$ ને ઉકેલ ન હોય તે માટેની $'b\ '$ ની ભિન્ન કિંમતોનો ગણ જો $S$ હોય તો $ , S$ એ $.........$
જો $A\, = \,\left( {\begin{array}{*{20}{c}}
0&{2q}&r\\
p&q&{ - r}\\
p&{ - q}&r
\end{array}} \right)$. જો $A{A^T}\, = \,{I_3},\,\left| p \right|$ તો $\left| p \right|$ મેળવો