The value of when (x≠0).

If sinθ – cosθ = 7/13 and 0⁰ < θ < 90⁰ , then the value of sinθ + cosθ is :

If  tan²θ +cot²θ  = 2, then what is the value of  2^{secθ cosecθ}?

If θθ, the value of secθ.tanθ=?

A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot of the tower. On advancing 100 m towards it, the tower is found to subtend and angle twice as before. The height of the tower is

The value of is: