- #1
n0_3sc
- 243
- 1
This is an easy question but can some else show/tell me how to do it:
"use the complex exponential series to express cos(2x) in terms of sin(x)"
I also don't quite understand the 'complex exponential series'.
"use the complex exponential series to express cos(2x) in terms of sin(x)"
I also don't quite understand the 'complex exponential series'.