Find the values of \(p,q,r\) and \(s\) if \(\left[\begin{array}{ccc}p^2-1 & 0 & -31-q^3 \...

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Find the values of \(p,q,r\) and \(s\) if
\(\left[\begin{array}{ccc}p^2-1 & 0 & -31-q^3 \...
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