The distance between two pillars is 120 metres. The height of one pillar is thrice the other. The angles of elevation of their tops from the midpoint of the line connecting their feet are complementary to each other. The height (in metres) of the taller pillar is (Use : √3 = 1.732)

If cosθ = x²-y²/x²+y² then the value of cotθ is equal to [ If 0 ≤  θ ≤ 90⁰]

The value of the expression 2(sin6θ+cos6θ)-3(sin4θ+cos4θ)+1 is

If sin P + cosec P = 2, then the value of sin7 P + cosec7P is

If cosx.cosy + sinx.siny = -1 then cosx + cosy is

 If secA + tanA = a, then the value of cosA is