Level:
Project ID:
2000017105
Accepted:
0
Clonable:
0
Easy:
0
Let \(x\) be a real number. Determine the inverse matrix to the matrix:
\[
\left (\array{
\cos x& -\sin x \cr
\sin x & \cos x \cr} \right )
\]
\[
\left (\array{
\cos x& \sin x \cr
-\sin x & \cos x \cr} \right )
\]
\[
\left (\array{
1& 0 \cr
0 & 1 \cr} \right )
\]
\[
\left (\array{
\frac{\cos x}{\sin 2x}& \frac{\sin x}{\sin 2x}\cr
-\frac{\sin x}{\sin 2x}& \frac{\cos x}{\sin 2x} \cr} \right )
\]
The inverse matrix does not exist.
Fixed Answer:
Last Fixed