In a triangle `A B C ,/_A=60^0a n db : e=(sqrt(3)+1):2,` then find the value of `(/_B-/_C)dot`

If an a triangle A B C , b=3ca n d C-B=90^0, then find the value of tanB

In a triangle A B C , if A-B=120^0a n dsin(A/2)sin(B/2)sin(C/2)=1/(32), then the value of 8cosC is_______

If in triangle A B C ,Delta =a^2-(b-c)^2 , then find the value of tan(A/2).

In a triangle ABC if b+c=3a then find the value of cot(B/2)cot(C/2)

If in triangle A B C ,/_C=45^0 then find the range of the values of sin^2A+sin^2Bdot

In a triangle ABC, angleA =60^o ,angleC =30^o ,b=2sqrt3,c=2 then a is:

In triangle A B C ,/_A=60^0,/_B=40^0,a n d/_C=80^0dot If P is the center of the circumcircle of triangle A B C with radius unity, then the radius of the circumcircle of triangle B P C is (a)1 (b) sqrt(3) (c) 2 (d) sqrt(3) 2

Let the angles A , Ba n dC of triangle A B C be in AdotPdot and let b : c be sqrt(3):sqrt(2) . Find angle Adot

A right-angled triangle A B C is inscribed in parabola y^2=4x , where A is the vertex of the parabola and /_B A C=pi/2dot If A B=sqrt(5), then find the area of A B Cdot

If in a triangle A B C ,/_C=60^0, then prove that 1/(a+c)+1/(b+c)=3/(a+b+c) .