Level:
Project ID:
2000017405
Accepted:
0
Clonable:
0
Easy:
0
For what value of \(a\) does the product given below result in a diagonal matrix?
\[
\left (\array{
3& -2\cr
a & -2 \cr
} \right )
\cdot
\left (\array{
4& 4 \cr
10 & 6 \cr
} \right )
\]
\(5\)
\(-5\)
\(4\)
\(-4\)
Fixed Answer:
None