The value of sec⁴ A (1 – sin⁴A) – 2tan²A is: 

The value of $$ {(sec^{2}θ+tanθ\cotθ-tan^{2}θ)}$$

$$ {tan^2θ}$$ is equal to:-

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

Select the INCORRECT formula from the following options.

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

Which of the following simplification value of $$ {(secA-cosA)^{2}}+{(cosecA-sinA)^{2}}-{(cotA-tanA)^{2}}$$ ?

If tan $$ -{7π\over4}=x $$ then the value of x is :