If x+ y=90°, then what is  the value of $$ {\sqrt{cosx.cosecy-cosx.siny}}$$?

If $${(2cos^3 A-cosA)\over (sin A- 2 sin^3 A)=1}$$ then what is the value of A?

The value of sin²22° + Sin²68°+ Cot² 30° is:

What is the value of $${\sqrt{1-cosA\over{1+cosA}}}$$?

$$ {3sin60°-4sin^{3}60°=?}$$

If $${secθ+tanθ\over secθ-tanθ}=2{51\over79}$$, then the value of sinθ is equal to:

What is the simplification value of $${cotA+tanB}\over{cotB+tanA}$$?

If a cot θ + b cosec θ= p and b cot θ + a cosec θ = q then p² -q² is equal to _____