Verify this identity. tan(x+pi/2)=-cot(x)

Question

anonymous · Answer

This is actually a one - sided limit: 

If you look at the graph of tan(x) at π/2. The value just right of π/2 is -∞ and The value just left of π/2 is ∞. 

So, lim(x → (π/2) + ) = -∞ 
lim(x → (π/2) - ) = ∞ 

So, overall the limit doesn't exist! 

Hope this helps! :)

anonymous · Answer

Wait, so can I have a step by step example of what exactly I have to do? I have to show my work and I don't really get it.

anonymous · Answer

Oh, never mind. I got it. Thanks!!

anonymous · Answer

yw

xapproachesinfinity · Answer

the question is asking to verify the identity written not finding limit

xapproachesinfinity · Answer

So what do you think you should do? what's your thoughts?
have you any practice in trigonometry?

anonymous · Answer

oops