M. S. Prabhakara recently died. He was

If x tan 60° + cos 45° = sec 45° then the value of x² + 1 is

The maximum value of 15 sin² θ + 8 cos² θ is

If  x - √(3y) =19 Then find the slope in angle?

If 2y . cos θ - x . sin θ = 0 and 2x . sec θ - y . cosec θ = 3, what is the value of x² + 4y²?

 If sinθ +cos θ = √5/2, then find the value of sinθ – cosθ.

If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?

If SecA + TanA = 2√2 + 3, then find the value of Sin A + Cos A

What is the value of (4/3) cot² (p/6) + 3 cos² (150^o) – 4 cosec² 45^o + 8 sin (p/2)?