2000017108

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Project ID: 
2000017108
Accepted: 
0
Clonable: 
0
Easy: 
0
For what values of the real parameters \(a\) and \(b\) will the matrices given below be inverse to each other? \[ \left (\array{ a& 7 \cr 3 & 1 \cr} \right ), ~ \left (\array{ -\frac1{16}& \frac7{16} \cr b & -\frac5{16} \cr} \right ) \]
\(a=5\), \(b=\frac3{16}\)
\(a=-5\), \(b=\frac3{16}\)
\(a=5\), \(b=-\frac3{16}\)
\(a=-5\), \(b=-\frac3{16}\)
Fixed Answer: 
None