What is the value of sinθ + cosθ, if θ satisfies the equation cot^2 θ – (√3 + 1) cotθ + √3 = 0; 0 < θ < π/4 ?

If tanθ + secθ = 3, then what is the value of 3 tanθ +…

What is (sec²α + tanα tanβ – tan²α)^2 + (tanα – tanβ)^2 – sec²α sec²β…

The angle of elevation of the top of a tower of height x metre from…

An aeroplane is observed to be (b) 17approaching the airport. It is at a distance…

If A, B, C, D are the angles of a cyclic quadrilateral, then what is…