Practice problem
Find the exact value of the following expression using half-angle formula(s): sin3π8\sin\frac{3\pi}{8}sin83π
22\frac{\sqrt2}{2}22
2+22\frac{\sqrt{2+\sqrt2}}{2}22+2
12\frac1221
24\frac{\sqrt2}{4}42
2+24\frac{\sqrt{2+\sqrt2}}{4}42+2
14\frac1441
Type a concept, like “slope” or “photosynthesis”.