Question

Quick identity question.
Does cot (x/2) = tan (2/x) ?

Answer 1

no you must be thinking of

cot(x) = 1/tan(x)

or

tan(x) = 1/cot(x)

Answer 2

what is the density of water in newton per meter cube?

Answer 3

JohnE95, that question belongs in a different section
It also could probably be solved by a google search

Answer 4

or \(\cot^{-1}(x/2)=\tan^{-1}(2/x)\)
?