Consider the pairs of prime numbers (m, n) between 50 and 100 such that m – n = 6. How many such pairs are there?

What is (1 + cotθ – cosecθ)(1 + tanθ + secθ) equal to?

If secθ + cosθ = 5/2, where 0 ≤ θ ≤ 90°, then what is…

Let cosα + cosβ = 2 and sinα + sinβ = 0, where 0 ≤…

Let ABC be a triangle right angled at C, then what is tan A +…

If cosecθ – cotθ = m, then what is cosecθ equal to?