Question
समीकरण $\left[\begin{array}{cc} a-b & 2 a+c \\ 2 a-b & 3 c+d \end{array}\right]$ = $\left[\begin{array}{cc} -1 & 5 \\ 0 & 13 \end{array}\right] $ से a, b, c तथा d के मान ज्ञात कीजिए।
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