trig

[needhelp247]

could some ome help?


double angle Identities


cot theta= 3 lies in quad III

 

[happy]

What's the complete problem?

 

[Unco]

Is it $\displaystyle \cot{\theta} = 3$; solve for $\displaystyle \theta$ where $\displaystyle \theta$ lies in quad 3?

If that's the case, no double angle identities are necessary.

Just write in terms of $\displaystyle \tan{\theta}$ and solve for quad 3.