If a cot θ + b cosec θ= p and b cot θ + a cosec θ = q then p² -q² is equal to _____

If sin A=$${6\over 7}$$, then what is the value of sec A?

ΔPQR is right angled at Q. If cos P = 3/5, then what is the value of cos R?

What is the value of 300°?

Sin (45 + θ) – Cos (45 – θ) is:

$${sin^2θ\over cosθ(1+cosθ)}+{1+cosθ\over cosθ} =?$$

$$(1+tan θ+secθ)(1+cotθ-cosecθ)\over (sec θ+tan θ)(1-sin θ) $$ is equal to :

If tanx = cot(50+3x), then what is the value of x ?