Originally Posted by

**problady** **Please read my first post, I think is quite well explained!**

Based on maths we know this formula: x + yi = cos(theta) + i sin(theta)

Now think in this way, someone has given you the right-hand side e.g., cos(0.6) + i sin(0.8)

And is asking you to find the left-hand side, which in this case is 3 + 4i

But as you may guess, could be: 6 + 8i, 12 + 16i etc. as well

So my question is given the right-hand side can we find left-hand side? Since given left-hand side we can find right-hand side precisely!