I think the parentheses are in the wrong place. It should probably read:
(1-cos2x)/tan x = sin2x
Again, split everything into sin and cos, and don't forget the identities:
Answer this Question
gr 12. advanced functions - Trig identity Prove: cos2x tan(pie/4 - x...
Pre-Calc (Prove the identity) - Prove the identity. (show your work please) tan(...
Math - Required to Prove the following trig identity: (cos2x)^2 + (sin2x)^2 = 1
Pre-Calc (Prove the identity) - Prove the identity. (show steps please!) Thank ...
calc - Where do I start to prove this identity: sinx/cosx= 1-cos2x/sin2x please ...
Pre-Calc Help!!! - Prove the identity. (show your work please) tan(x − ...
Pre-Calc !!! - Prove the identity. 2tanx/1+tan^2x=sin^2x
Pre Calculus - Establish the following identity Sin2x/1+cos2x=tanx
pre-calc - tanx= -12/5 x in Q 2. find sin2x= cos2x= tan2x=
pre-calc - is x=15 degrees a solution of radical 3/3 cos2x+sin2x=0