Question: Find sin (7 / 12) using half-angle formulas. The second part instructed to solve using sum/difference equations, which I solved and obtained (2 + 6)

Find sin (7 / 12) using half-angle formulas.

The second part instructed to solve using sum/difference equations, which I solved and obtained (2 + 6) / 4.

I just don't understand how to properly use half-angle formulas, if you could help walk through it with me, It would be greatly appreciated! Thanks!

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