$$ {tan7°tan23°tan60°tan67°tan83°}$$ is equal to-

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

Find the minimum value of $$ {25 cosec^{2}θ +25sin^{2}θ}$$

What is the value of $$ {cosecθ\sqrt{1-cos^2θ}}$$.

If cosec 39°= x, the value of $$ {1\over {cosec^{2}{51°}}} +sin^{2} 39^{°}+tan^{2}{51^{°}}-{1\over {sin^{2}{51^{°}}}{Sec^{2}{39^{°}}}}$$ is-

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

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

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