Find the terminal point on the unit circle determined by $\frac{3 \pi}{4}$ radians.
Use exact values, not decimal approximations.
\[
(x, y)=\text { (‥) }
\]

Step 1 ：The terminal point on the unit circle determined by an angle in standard position is given by the coordinates \((\cos(\theta), \sin(\theta))\). In this case, the angle is \(\frac{3 \pi}{4}\) radians. We need to find the cosine and sine of this angle.

Step 2 ：The cosine and sine of \(\frac{3 \pi}{4}\) radians are both approximately 0.707, but with opposite signs. However, the question asks for exact values, not decimal approximations.

Step 3 ：We know that \(\cos(\frac{3 \pi}{4}) = -\frac{\sqrt{2}}{2}\) and \(\sin(\frac{3 \pi}{4}) = \frac{\sqrt{2}}{2}\).

Step 4 ：Final Answer: The terminal point on the unit circle determined by \(\frac{3 \pi}{4}\) radians is \(\boxed{\left(-\frac{\sqrt{2}}{2}, \frac{\sqrt{2}}{2}\right)}\).