Question
यदि $3\left[\begin{array}{ll}x & y \\ z & w\end{array}\right]$ = $ \left[\begin{array}{cc}x & 6 \\ -1 & 2 w\end{array}\right]$+ $ \left[\begin{array}{cc}4 & x+y \\ z+w & 3\end{array}\right]$ है तो x, y, z तथा w के मानों को ज्ञात कीजिए।
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