If x cos²30⁰. sin60⁰=$${tan^2{45}^0.sec60^0}\over cosec\ 60^0$$ then the value of x : 

If 4sin² θ – 1 = 0 and angle θ is less than 90⁰. The value of cos² θ + tan² θ is:
(Take 0⁰ < θ < 90⁰) 

If tan α = 2, then the value of   $$ {cosec^2 α - sec^2 α}\over{cosec^2 α + sec^2 α}   $$ is : 

If 2sin² θ – 3 sin θ + 1 = 0,   θ being positive angle, then the values of θ are : 

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

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

If $$ secθ-tanθ={1\over\sqrt{3}}$$, the value of secθ.tanθ=?

What is the value of $$ {2tan53°\over cot37°} -{cot80°\over tan10°}$$ is: