Let `cosA+cosB + cos C=3/2` in a triangle then the type of the triangle is

Let cos A+cos B+cos C=(3)/(2) in a triangle then the type of the triangle is

In any triangle ABC, if (cosB+ 2 cosA)/(cos B + 2cosC ) = (sin C)/(sinA) then prove that, the triangle is either isosceles or right angled.

In DeltaABC,a/cosA=b/cosB=c/cosC,ifb=2 then the area of the triangle is

If in triangle ABC cosA/cosB =a/b then triangle ABC is

If in a triangle A B C ,cosA+2cosB+cosC=2 prove that the sides of the triangle are in AP

If in a triangle A B C ,cosA+2cosB+cosC=2 prove that the sides of the triangle are in AP

If in a triangle A B C ,cosA+2cosB+cosC=2 prove that the sides of the triangle are in AP

If in DeltaABC,(cosA)/(a)=(cosB)/(b)=(cosC)/(c) and side a=2, then the area of the triangle is

If (cosA + 2cosC) : (cosA + 2cosB) = sinB : sinC prove that the triangle either isosceles or right angled.