# Double Angle Equations!

• Nov 28th 2012, 02:46 PM
whittwhitt
Double Angle Equations!
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
• Nov 28th 2012, 02:59 PM
skeeter
Re: Double Angle Equations!
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

$\cos{x} \cdot \csc{x} = \cot{x}$

what does that have to do w/ double angle identities?
• Nov 28th 2012, 03:16 PM
whittwhitt
Re: Double Angle Equations!
There's double angle identity problems that require you to convert one function into another;

like sin ---> csc; sin=2, so csc=1/2 because sin is the inverse of csc

These are just more complicated conversion problems...
• Nov 28th 2012, 03:36 PM
skeeter
Re: Double Angle Equations!
post one of the problems including all given information and directions ...