HelpMe94 2 years ago Verify This... (See Below)

1. HelpMe94

$\tan (X+\frac{ \pi }{ 2 }) = - COT(X)$

2. HelpMe94

I saw... $\tan \frac{ \pi }{ 2 }=Undefined$ How can this be verified

3. HelpMe94

@mark_o. can you help on this im stuck again on these