If 2tanx/1-tan^2 x = then x can equal:?

there can be more than 1 answer

x= 7pi/8 + npi

x= 5pi/8 + npi

x= 3pi/8 + npi

x= pi/8 + npi

Question

If 2tanx/1-tan^2 x = then x can equal:?

there can be more than 1 answer
 
x= 7pi/8 + npi
 
x= 5pi/8 + npi
 
x= 3pi/8 + npi
 
x= pi/8 + npi

anonymous · Answer

um wat's it equal to?

anonymous · Answer

that's what I'm asking...

anonymous · Answer

it'sin2x i think

anonymous · Answer

there are 4 options I can choose from, they are written under the equation..

anonymous · Answer

like :-/ i think the qn s incomplete

anonymous · Answer

these are the options I can choose from:
x= 7pi/8 + npi
 
x= 5pi/8 + npi
 
x= 3pi/8 + npi
 
x= pi/8 + npi

anonymous · Answer

one(or more) of those options are equal to this equation: 2tanx/1-tan^2 x

anonymous · Answer

it should be last one i guess........ig qn is 2tanx/1-tan^2 x =cos2x

anonymous · Answer

nd if qn is 2tanx/1-tan^2 x =1 upon root 2...answers 3rd nd 4th
2tanx/1-tan^2 x =- 1/root 2 1st nd second