Select the most appropriate synonym of the given

tan 20˚ x tan 23˚ x tan 67˚ x tan 70˚ = ?

Simplify (cos13°+sin 13°) /(cos13°-sin13°)

The Value of (sin38˚)/(cos52˚) + (cos12˚)/(sin78˚) - 4cos²60˚ is

If 'θ' is an angle less than 120^°, what is the value of 'θ' if it satisfies the equation 3cos²θ = 2 + sin²θ.

If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?

If secθ + tanθ = 5/2 for an acute angle θ, find sinθ.

Find the Value of Sin⁶`Theta`  + Cos⁶`Theta`  + 3Sin² `theta` Cos²`Theta`

If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan¹⁷ θ + cot¹⁹ θ.