If $$ {secθ+tanθ\over secθ - tanθ} $$= $$ 2{51\over 79} $$ sinθ then the value of sin θ is :

$$ {tan^2θ}$$ is equal to:-

The value of $$ {2(1-sin^{2}θ)}+{2(1-cos^{2}θ)}$$. 

Simplify $$ \sqrt{(1-sin^{2}θ) ÷(1-cos^{2}θ)}$$.

What is the simplified value of (1– sin A cos A)(sin A + cos A)?

If 3 + cos²θ= 3(cot²θ + Sin²θ), 0°<θ<90°, then what is the value of (cosθ +2sinθ)?

If $$ sin(θ+30^0)= {3\over \sqrt { 12} }  $$ then find cos²θ : 

If Cos A + Cos² A = 1, then Sin² A + Sin⁴ A=?