How many terms are there in the following product?
(a1 + a2 + a3)(b1 + b2 + b3 + b4)(c1 + c2 + c3 + c4 + c5)

A vertical tower standing at the corner of a rectangular field subtends angles of 60°…

A pole on the ground leans at 60° with the vertical. At a point x…

If 6 + 8tanθ = secθ and 8 – 6tanθ = ksecθ, then what is…

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

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