If sides of triangle ABC are a, b, and c such that `2b = a + c`, then

In a triangle ABC, the side a,b,c are such that they are the roots of then (cosA)/a+(cosB)/b+(cosC)/c=

If the sides of a triangle ABC vary slightly in such a way that 'R' (circum radius) is constant then delta a sec A+delta b .sec B+delta c*sec C=

If the angles A,B, and C of a triangle ABC are in AP and the sides a,b and c opposite to these angles are in GP,then a^(2),b^(2) and c^(2) a are related as

If a, b, c are sides of the triangle ABC and |(1,a, b),(1,c,a),(1,b,c)|=0 , then the value of cos 2A+cos 2B+cos 2C is equal to

If a,b and c are the lengths of the sides of a right triangle ABC with c=2a and b^(2)-3a^(2)=0 , then angleABC=……………………

The sides of triangle ABC satisfy the relations a + b - c= 2 and 2ab -c^(2) =4 , then the square of the area of triangle is ______

The largest side of a triangle ABC that can be inscribed in acrcle so that (a^(3)+b^(3)+c^(3))/(sin^(3)A+sin^(3)B+sin^(3)C)=64 is (where a,b,c are lengths of sides opposite to vertices A,B,C of the triangle ABC respectively)

Sides of triangle ABC are in A.P.if a