" 4."cot48^(@)*cot23^(@)*cot42^(@)*cot67^(@)" का मान है "

cot6^(0)cot42^(0)cot66^(@)cot78^(@)=1

What is cot 1^(@) cot 23^(@) cot 45^(@) cot 67^(@) cot 89^(@) equal to ?

cot10^(@)cot20^(@)cot60^(@)cot70^(@)cot80^(@)=

cot12^(@)*cot 24^(@)*cot28^(@)*cot32^(@)*cot48^(@)*cot88^(@)=……..

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

The value of (cot84^(@)cot48^(@))/(cot66^(@)cot78^(@)) is equal to

The value of (cot84^(@)cot48^(@))/(cot66^(@)cot78^(@)) is equal to

The value of (cot84^(@)cot48^(@))/(cot66^(@)cot78^(@)) is equal to

Show that: cot16^(@)*cot44^(@)+cot44^(@)*cot76^(@)-cot76^(@)*cot16^(@)=3