Level:
Project ID:
2000017208
Accepted:
0
Clonable:
0
Easy:
1
Let \(x \in \mathbb{R}\). What is the sum of all the entries on the main diagonal of the following matrix?
\[
\left (\array{
\sin^2 x& 0& 1\cr
5 & \cos^2 x & 4\cr
\sin^2 x & 3 & -1
} \right )
\]
\(0\)
\(1\)
\(2\)
\(4\)
Fixed Answer:
None