Find the value of `cot(-1125^@)​`

Find the value of cot(pi/24)

Find the value of (cot 25^(@)+cot 55^(@))/(tan 25^(@)+tan55^(@))+(cot 55^(@)+cot 100^(@))/(tan 55^(@)+tan 100^(@))+(cot 100^(@)+cot 25^(@))/(tan 100^(@)+tan 25^(@))

Find the value of (cot25^(@)+cot55^(@))/(tan25^(@)+tan55^(@))+(cot55^(@)+cot100^(@))/(tan55^(@)+tan100^(@))+(cot100^(@)+cot25^(@))/(tan100^(@)+tan25^(@))

Find the value of cot(tan^(-1)a+cot^(-1)a)

Find the value of: cot(tan^(-1)a+cot^(-1)a)

Find the value of cot10^(@).cot20^(@).cot60^(@).cot70^(@).cot80^(@) .

Find the value of (1-cot35^(@))*(1-cot65^(@))*(1-cot160^(@))*(1-cot190)

Find the value of log cot1^(@)+log cot2^(@)+log cot3^(@)+......+log cot89^(@)

Find the value of (cot9^(@)-1)(cot18^(@)-1)(cot27^(0)-1)(cot36^(@)-1)