Level:
Project ID:
2000018904
Accepted:
0
Clonable:
0
Easy:
0
Specify \(p\) so that the matrix \(A\) has rank \(2\).
\[
A=\left(\array{
1& p+1\cr
3 & 6+2p \cr
-1 & -8} \right)
\]
\(A\) has rank \(2\) for every real number \(p\).
\(p=7\)
\(p=9\)
\(A\) has not rank \(2\) for any \(p\).