If `triangleABC` is right angled at B , where `A(5,6,4), B(4,4,1) and C(8,2,x)` , then find the value of x.

If Delta ABC is right angled at A, where A-=(4, 2, 3), B-=(3, 1, 8) and C-=(x,-1,2) , then x =

In a triangleABC , right-angled at B, if AB : AC = 1:2, then find the value of (2tanA)/(1+tan^2A) .

triangleABC is right angled at B. BD is an altitude AD+4 cm and DC = 9 cm. what is the value of BD? (A) 5 cm (B) 4.5 cm (C) 5.5 cm (D) 6 cm

Let triangleABC is a right angled triangle right angled at A such that A(1,2),C(3,1) and area of triangleABC=5sqrt(5) then abscissa of B can be

If A : B = 1 : 2, B : C = 3 : 4 and C : D = 5 : 6, then find the value of D : C : B.

In triangleABC , if a=3, b=4, c=5, then sin2B=

In /_\ABC , right angled at B, AB=3 , BC=4 and CA=5 . Then value of tan^2C+1 is:

If the points A (2,9), B (a,5) and C (5,5) are the vertices of a triangleABC . Right-angled at B, then find the values of a and hence the area of triangleABC .

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, B = { 2, 4, 6, 8} and C = {3, 4, 5, 6} then find the value of B nn C' .