" (ii) "tan35^(@)tan40^(@)tan45^(@)tan50^(@)tan55^(@)

tan20^(@)tan40^(@)tan80^(@)

Evaluate: tan35^(@)tan40^(@)tan45^(0)tan50^(@)tan55^(@)

tan20^(@)tan40^(@)tan60^(@)tan80^(@)=?

Value of tan25^(@)tan35^(@)tan45^(@)tan55^(@)tan65^(@) is

Evaluate : ( 1 ) cosec (65° +theta) -sec (25° - theta) - tan (55° + theta) + cot (35° - theta) (2) (3cos55^(@))/(7sin35^(@))-(4(cos70^(@)cosec20^(@)))/(7(tan5^(@)tan25^(@)tan45^(@)tan65^(@)tan85^(@)))

Prove that (tan25^(@)-tan35^(@)+tan85^(@))/(tan25^(@)tan35^(@)tan85^(@))=3

(2sin68^(@))/(cos22^(@))-(2cot15^(@))/(5tan75^(@))-(3tan45^(@).tan20^(@).tan40^(@).tan50^(@).tan70^(@))/(5) is equal to

The value of the expression tan13^(@)tan27^(@)+tan27^(@)tan50^(@)+tan50^(@)tan13^(@) is equal to

Prove that, tan25^(@).tan15^(@)+tan15^(@)tan50^(@)+tan25^(@)tan50^(@)=1 .