Given these two angles:
[tex]\frac{5\pi}{4}[/tex][tex]-\frac{3\pi}{4}[/tex]
You need to remember that, by definition, two angles are coterminal if the Difference (the result obtained by subtracting them) is:
[tex]360\text{\degree or }2\pi[/tex]
Then, you need to set up:
[tex]\frac{5\pi}{4}-(-\frac{3\pi}{4})[/tex]
Solving the Subtraction, you get:
[tex]=\frac{5\pi}{4}+\frac{3\pi}{4}[/tex][tex]=\frac{8\pi}{4}[/tex][tex]=2\pi[/tex]
Hence, the answer is: They are Coterminal Angles.
