If $$ {\sqrt{3}\ CosA=SinA}$$ then what is the value of Cot A?

If sin3θ=cos(20° - θ) then find out  the value of θ.

If sec -5π/4 = x, then  the value   of x is

The value of $$ sec{^4}A(1-sin{^4}A)-2tan{^2}A $$ is:

If cos θ + sin θ =m, sec θ + cosec θ =n, what is m/n?

If 0 ≤ θ ≤ 90⁰ and 4cos²θ - $$4{\sqrt { 3} \ }cosθ$$ + 3 = 0, then the value of θ is : 

If $$ {cot A={n\over{n+1}}}$$ and $$ {cot B={1\over{2n+1}}}$$ then what is the value of cot (A + B)?

If 1 + sin² A = 3 sin A cos A, then what are the possible values of tan A?