The discussion revolves around trigonometric formulas, specifically focusing on the tangent and cotangent functions. The original poster seeks assistance in solving specific trigonometric expressions and proving certain identities.
Some participants have provided guidance on the use of LaTeX for clarity and have pointed out potential issues with the original poster's approach. There is an ongoing exploration of the correctness of the identities mentioned, with no explicit consensus reached on the proofs or solutions.
There are indications of confusion regarding the mixing of radians and degrees, as well as the correctness of the trigonometric identities being discussed. The original poster's request for help suggests a need for clarification on these topics.
It's really a very bad idea to mix radians and degrees which it looks like you are doing here. Do you know what tan([itex]\pi/4[/itex]) is? Do you know the "half angle" formula for tangent?quantumgenius said:using those formulas, how would you solve
tan 11 pi
-----
8
and cot 195
You wouldn't- it's not true!also, how would you prove tan (x +y ) = tan x
What is tan(x+ y)?? And what is tan([itex]\pi/4[/itex])?and tan ( pi/4 -x) = 1 - tan x
---------
1 + tan x