If in a triangle ABC, delta = a^2 - (b - c)^2, then tan A =

(a) 15/16       (b) 8/15          (c) 8/17          (d) 1/2

In any triangle ABC, b^2 sin 2C + c^2 sin 2B =

In any triangle ABC, if cot A/2, cot B/2, cot C/2 are in A.P.,then a,b,c are in

(a)  A.P        (b)   G.P        (c)   H.P         (d)   none of these

In any triangle ABC, II(sin^2 A + sin A + 1)/sin A is always greater than

In any triangle ABC, sum(sin^2 A + sin A + 1)/sin A is always greater than

How do you find the integral cos^(-1)(sin x) dx

If (a, b) is the mid point of a chord passing through the vertex of the parabola y^2 = 4x, then