<span>(5,-1)
The key to this problem is ignoring all the information that you don't need. You really don't care about the coordinates for T, U, or V. Just W is all that matters. So make a graph, label the X and Y axis, and put a point at (1,5). Now simply turn the entire paper clockwise 90 degrees. If you do this, you'll see that what was the X axis is now the Y axis. And what was the Y axis is now the X axis. Label the axis again, and read the location of the point you marked. If you do so, you'll see that you have to go 5 spaces along the X axis, hence the 5. And you'll go 1 space down on the Y axis, hence the -1.
So the coordinates of W(1,5) rotated 90 degrees clockwise around (0,0) changes to (5,-1).</span>
Answer: The identity is verified. See the explanation.
Step-by-step explanation:
You must keep on mind the following identities:

Therefore, by substitution, you can rewrite the identity as shown below:

Simpliying, you obtain:

The identity is verified.
This answer is already to the nearest tenth. The 5 is in the tenth's place.
I think that the answer could be D
It is a rational number
It is not an integer because it isn't a whole number