Need help

[Cdrag]

Hello! There is something incorrect in this equation can you help me identify it?

 

[Steven G]

There are only 5 equal signs. Do you know if any are correct? Which ones are questionable? Please respond so we can discuss this problem.

 

[Cdrag]

There are only 5 equal signs. Do you know if any are correct? Which ones are questionable? Please respond so we can discuss this problem.

Unfortunately I don’t have an answer, professor just wrote this equation and said that there was one mistake.

 

[Steven G]

I am sure that you know that e^(2pi*i) = cos(2pi) + isin(2pi) = 1, then two of the equal signs are valid. Which ones?