I need help with the steps leading from one function to the other? ... These are double angle identity conversions.
- Cos --> cotangent
- Cos --> sin2θ
- Secent --> tangent
- Cotangent --> secent
- Cos2θ --> sin
- Sin2θ --> cos
I'm sorry, but I really don't know what you're trying to accomplish.
what do you mean by cos -> cot ?
with this, all I can tell you is
$\displaystyle \cos{x} \cdot \csc{x} = \cot{x}$
what does that have to do w/ double angle identities?