`cot 5^@ - tan 5^@ - 2 tan 10^@ - 4 tan 20^@ - 8 cot 40^@` is equal to -

IF tan A + cot A=4 , then tan^4 A + cot ^4 A is equal to

The value of (cot 54^@)/(tan 36^@)+(tan20^@)/(cot70^@) is equal to:

tan70 ^ (@) - tan20 ^ (@) = k cot40 ^ (@) rArr k =

If Tan70^(@) - Tan20^(@) = k Cot40^(@) then k =

Solve the following : (2sin22^@)/(cos68^@)-(2cot75^@)/(5 tan15^@)-(8 tan 45^@ tan20^@ tan 40^@ tan 50^@ tan70^@)/5

the numerical value of tan20^(@)tan80^(@)cot50^(@) is equal to

If tan A=2 tan B+cot B, then 2 tan (A-B) is equal to

If tan A=2 tan B+cot B, then 2 tan (A-B) is equal to