How Do You Calculate Sin(i) Using Euler's Formula?

[soopo]

Homework Statement

How can you calculate the value of sin(i)?

 

[zcd]

$$e^{i\theta}=\cos\theta+i\sin\theta$$, and eventually you get to $$\sin\theta=\frac{e^{i\theta}-e^{-i\theta}}{2i}$$