AB, CD, PQ are perpendicular to BD. If AB = x, CD = y and PQ = z
prove that `(1)/(x) + (1)/(y) = (1)/(z) `

AB,CD,PQ are perpendicular to BD. AB=x. CD=y and PQ=z, prove that 1/x+1/y=1/z .

If Tan^(-1) x + Tan^(-1) y + Tan^(-1) z = pi then prove that x+y+z = xyz .

In the given figure three lines bar(AB) , bar(CD) and bar(EF) intersecting at O. Find the values of x, y and z it is being given that x : y : z = 2 : 3 : 5

In a rectangle ABCD, AB = x + y, BC = x - y, CD = 9 and AD = 3. Find the values of x and y.

In DeltaACB, angleC=90^(@) and CD_|_AB Prove that (BC^(2))/(AC^(2))=(BD)/(AD) .

In quadrilateral ABCD, AB = BC = CD = AD and AC ne BD then it is a .....

In triangle ACB , angle C = 90^@ and CD bot AB . Prove that BC^2/AC^2 = BD/AD .

In the adjacent figure AB || CD, CD || EF and y : z = 3 : 7, find x.

In the figure, O is the centre of the circle and AB = CD. OM is perpendicular on bar(AB) and bar(ON) is perpendicular on bar(CD) . Then prove that OM = ON.