" If `tan35^(0)+cot37^(0)+tan325^(@)=x tan53^(0)+tan127^(0)` then `x=`

If tan 35^(@) +cot 37^(@) +tan 325^(@)=x tan 53^(@)+ tan 127^(@) then x=

tan9^(0)-tan27^(0)-tan63^(@)+tan81^(@)

Prove that : tan53^(@)=tan37^(@)+2 tan16^(@) .

tan225^(@)cot405^(@)+tan765^(@)cot675^(@)=0

The number of general solutions (sin 10^(@))^(tan x + tan 3 x) = tan 10^(0) + tan 30^(0) + tan15^(0) tan 30^(0), x in (0, pi]

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

Without using trigonometric tables,evaluate each of the following: (2)/(3)cos ec^(2)58^(@)-(2)/(3)cot58^(@)tan32^(@)-(5)/(3)tan13^(0)tan37^(0)tan45^(@)tan53^(@)tan77^(0)

If tan25^(0)=a, then the value of (tan205^(@)-tan115^(0))/(tan245^(0)+tan335^(@)) in terms of 'a' is

The value of (tan70^(0)-tan20^(0))/(tan50^(0)) =

If tan 35^(@) = 0.7 , then tan (-665^@) =