If $$ {sin\ θ\ cosec\  θ\over tan θ}=4 $$  then Find the value of tan θ ?

In ΔABC θ is an acute angle and tanθ is equal to three times of cotθ. Find the value of $$ {sin^{2}θ+cosec^{2}θ-{1\over 2}cot^{2}θ}$$.

(secA – 1)/(secA + 1) is equal to?

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

$$ {tan7°tan23°tan60°tan67°tan83°}$$ 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 $$ {cosecθ\sqrt{1-cos^2θ}}$$.