निम्नलिखित के मान ज्ञात करो-
Q.`cot12^(@)cot38^(@)cot52^(@)cot60^(@)cot78^(@)`

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

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

Prove that cot12^(@)cot38^(@)cot52^(@)cot78^(@)cot60^(@)=(1)/(sqrt3)

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

cot12^(@)cot102^(@)+cot102^(@)cot66^(@)+cot66^(@)cot12^(@) =

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

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

Evaluate each of the following: cot12^(@)cot38^(@)cot52^(@)cot60^(@)cot78^(@)tan5^(@)tan25^(@)tan30^(@)tan65^(@)tan85^(@)

Find the value of cot 12^@ cot38^@cot 52^@cot78^@cot60^@ .