The value of `cot 5^(@).cot 10^(@).cot 15^(@)……cot 85^(@)` is

The value of cot 36^(@)cot 72^(@) is-

The value of cot5^(@)*cot15^(@)* cot 25^(@)* cot 35^(@)* cot45^(@) * cot 55^(@) * cot65^(@) * cot 75^(@) * cot 85^(@) is ________

The value of cot5^(0)cot10^(0)......cot85^(@) is

The value of cot36^(@)cot72^(@), is

The value of cot36^(@)cot72^(@), is

The value of cot5^(@)cot10^(@) …………. cot85^(@) is …………

The value of (cot25^(@)cot35^(@)+cot95^(@)cot145^(@)+cot85^(@)cot155^(@)) is equal

Find the value of cot15^(@).cot30^(@).cot45^(@).cot60^(@).cot75^(@)